{"title":"Other Bikes Engine","description":"","products":[{"product_id":"tb-170cc-to-184cc-bore-kit-race-head-v2-and-28mm-carb-kit","title":"TB 170cc to 184cc Bore Kit, Race Head V2, and 28mm Carb Kit","description":"\u003cp style=\"text-align: start;\"\u003eKit includes the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: start;\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eRace Head V2 – Roller rockers, 30mm intake valve, 24.5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eThe Race Camshaft V2-1 for the V2 head has been switched to our new version V2-2 for larger displacement engines (P\/N TBW0577) and increases the performance.\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eAll aluminum ceramic plated 64mm cylinder with skirt\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eWe increased the skirt height and size on the lightweight high compression 64mm piston with rings, pin, \u0026amp; clips to increase reliability and service life (picture is not updated yet showing piston change)\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eHead gasket kit – includes the cylinder head o-ring set and an exhaust gasket.\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003e8mm Performance Carb (125 main\/50 pilot)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eRear Facing Intake Kit – not forward facing like the KLX110 style (picture is not updated yet showing intake change\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eJet kit for varying conditions and exhausts\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eThrottle Cable\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eFoam Air Filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" style=\"text-align: start;\"\u003eThis is our latest complete kit to turn your YX\/GPX\/Zongchen150cc to 160cc engine into an absolute beast!  This kit includes our new Race Head V2 and while the new head may appear to be the same on the outside as our old KLX110 type race head, internally it has gone through numerous changes.  The addition of roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. The exhaust valve is now stainless as well (21-4N material). This all adds up to a cylinder head that puts out a professional level of performance yet is still affordable for the privateer rider.  The kit also includes an all aluminum ceramic plated 64mm cylinder (with skirt).  This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). We top off the roller head with a 28mm performance carb kit that is easy to tune and works much better with this setup than your stock Chinese 26mm carb.  Additionally, our head gasket kit also includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new top end consists of high quality parts and requires \u003cspan style=\"text-decoration: underline;\"\u003eno machining to the cases\u003c\/span\u003e – bolt on and go!  \u003cspan style=\"text-decoration: underline;\"\u003eThis kit is only for the YX\/GPX\/Zongchen 150cc to 160cc engines with a a KLX110 type topend\u003c\/span\u003e.  The increase in displacement will depend on your stock engine size.  With this kit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: start;\"\u003eA stock 150cc engine will increase to 170cc\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eA stock 155cc engine will increase to 177cc\u003c\/li\u003e\n\u003cli style=\"text-align: start;\"\u003eA stock 160cc engine will increase to 184cc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" style=\"text-align: start;\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.\u003c\/p\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48703802147133,"sku":"TBW9040","price":739.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/TBW9040.jpg?v=1751314288"},{"product_id":"bbr-crf230f-240cc-big-bore-kit","title":"BBR  CRF230F - 240cc Big Bore Kit","description":"\u003cp class=\"\" style=\"white-space: pre-wrap;\"\u003eBig bore kit for the CRF230F. This is the quickest way to add power to your bike. Great when combined with a BBR exhaust system, Rev-Box, and Free-Flow airfilter. Your OEM cylinder will need to be machined for installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003e67mm piston, pin, clips, and rings\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eHigh compression piston\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eIncludes head and base gaskets\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BBR","offers":[{"title":"Default Title","offer_id":48703907135805,"sku":"410-HCF-2301","price":164.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/240_resize.jpg?v=1751313599"},{"product_id":"bbr-bore-kit-240cc-wcam-crf230-03-present","title":"BBR Bore Kit - 240cc W\/Cam \/ CRF230, 03-Present","description":"\u003cp class=\"\" style=\"white-space: pre-wrap;\"\u003eQuick and easy bore-in for big power boost. This high compression kit comes complete with high-performance piston, rings, piston pin, clips, BBR exclusive MX-grind performance cam shaft, HD valve springs and gaskets. Your OEM stock cylinder will need to be bored for installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003e67mm piston, pin, clips, and rings\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eHigh compression piston\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eBBR MX Camshaft\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eHD Valve Springs\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eIncludes head and base gaskets\u003c\/li\u003e\n\u003cli style=\"white-space: pre-wrap;\"\u003eRequires professional boring of your stock cylinder\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BBR","offers":[{"title":"Default Title","offer_id":48703908446525,"sku":"411-HCF-2301","price":219.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/411-HCF-2301_A_Large_758cac6f-5c13-4430-a625-619e7708026b.jpg?v=1751313583"},{"product_id":"tb-parts-138cc-big-bore-kit-125cc-54x54mm-14mm-pin-chinese-engines","title":"TB Parts 138cc Big Bore Kit - 125cc 54x54mm 14mm pin Chinese engines","description":"\u003cp class=\"\" style=\"text-align: start; white-space: pre-wrap;\"\u003e138cc (57mm) Bore Kit for Chinese 125cc Engines with Big Valve Cylinder Heads (Lifan, V2, etc):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: start; white-space: pre-wrap;\"\u003e57x69mm cylinder with steel liner\u003c\/li\u003e\n\u003cli style=\"text-align: start; white-space: pre-wrap;\"\u003eHigh compression large dome 57mm piston with rings, \u003cstrong\u003e14mm pin\u003c\/strong\u003e, \u0026amp; clips\u003c\/li\u003e\n\u003cli style=\"text-align: start; white-space: pre-wrap;\"\u003eHead gasket kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" style=\"text-align: start; white-space: pre-wrap;\"\u003eThis will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The 138cc bore kit includes a 57mm bore cylinder, light weight high revving piston and a head gasket kit. Bolt on power!\u003c\/p\u003e\n\u003cp class=\"\" style=\"text-align: start; white-space: pre-wrap;\"\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e This kit will only work on Chinese\/Lifan style 125cc engines with a \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e69mm cylinder (base to Deck),\u003c\/strong\u003e\u003c\/span\u003e \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e54mm stroke, 14mm piston wrist pin, and clutch basket is on the crankshaft. \u003c\/strong\u003e\u003c\/span\u003eThere are so many Chinese brands\/models that you absolutely need to know your stroke and piston wrist pin size. Unfortunately, we are unable to tell you what you have based on a brand name as there are so many unknown Chinese brands.  This kit is also recommended for use only with big valve heads such as the common Lifan head with 27\/23mm valves or our V2 Race Head for Chinese engines.\u003c\/p\u003e\n\u003cp class=\"\" style=\"text-align: start; white-space: pre-wrap;\"\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e: Don’t use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return. The new head gasket has RTV gasket built in.\u003c\/p\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48703912968509,"sku":"TBW9225","price":163.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/9225.jpg?v=1751313547"},{"product_id":"tb-parts-clutch-plate-kit-6-disk-upgrade-yx140-style","title":"TB Parts Clutch Plate Kit, 6 Disk Upgrade – YX140 style","description":"\u003cp\u003eTBparts 6 plate clutch pack for YX140 style engines. This kit adds 1 extra steel and fiber to your clutch increasing strength! Great for use with our 146cc kits or as a replacement.\u003c\/p\u003e\n\u003cp\u003e*Combine with TB HD springs for even more strength – TBW0538\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48746130997565,"sku":"TBW0532","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image53.jpg?v=1751312689"},{"product_id":"tb-parts-head-cover-right-honda-50cc-70cc-88","title":"TB Parts Head Cover, Right – Honda 50cc \u0026 70cc 88+","description":"\u003cp\u003e\u003cspan\u003eTB parts right hand cylinder head cover. Works as a stock replacement for 88+ Honda 50cc and 70cc models. We also include this in kits for use with our V1 Honda race head on 81- and older models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48835116073277,"sku":"TBW0251","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image93.jpg?v=1751312657"},{"product_id":"tb-parts-manual-clutch-kit-replacement-clutch-cable","title":"TB Parts Manual Clutch Kit – Replacement Clutch Cable","description":"\u003cp\u003e\u003cspan\u003eReplacement cable for TB Manual Clutch Kits TBW0953 and TBW0954.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48835167060285,"sku":"TBW0323","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image100.jpg?v=1751312649"},{"product_id":"tb-piston-54mm-trx90-chinese-86cc-type-tb-race-heads","title":"TB Piston, 54mm – TRX90\/Chinese 86cc Type – TB Race Heads","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eReplacement 54mm piston kit for all of the TB 114cc Race Head and V2 Honda Race Head Kits used on the TRX90 and Chinese engines.  This piston also works on the stock TRX90 cylinder head when the extra spark plug washer (included) is used (provides clearance).\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48835531637053,"sku":"TBW0788","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image129.jpg?v=1751312619"},{"product_id":"tb-parts-wire-harness-xr75-k0-76-models","title":"TB Parts Wire Harness – XR75 K0-76 Models","description":"\u003cp\u003e\u003cspan\u003eThis is an extremely high quality XR75 K0-76 Wire Harness and is as close to the original as possible. In fact, its virtually impossible to tell the the difference from the OEM harness. The harness has the same color coded wires, sockets and brass connectors. All you have to do is plug it all in and you are set! TBarts is the original developer and supplier of XR75 reproduction wire harnesses and provides the best quality harnesses available in the marketplace today.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48835604218173,"sku":"TBW0833","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image135.jpg?v=1751312610"},{"product_id":"tb-parts-daytona-190-oil-filter","title":"TB Parts Daytona 190 Oil Filter","description":"\u003cp\u003eTB Oil Filter, Various Models\u003cbr\u003eReplacement Oil Filter for the following models:\u003c\/p\u003e\n\u003cp\u003eHonda TRX125 and ATC125\u003cbr\u003eSSR 150\/160 TX and TR\u003cbr\u003eDaytona 150\/190\u003cbr\u003eYX150\/160\u003cbr\u003ePitster Pro\/Piranha ZS190 2V engine\u003cbr\u003eThis oil filter fits most of the Pit Bikes engines 150cc \u0026amp; up.  However, it does NOT fit the Zongchen 155cc engines.\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48975188361533,"sku":"TBW1015","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/1015-1-1000x1000.webp?v=1751312328"},{"product_id":"tb-parts-cam-sprocket-32t","title":"TB Parts Cam Sprocket, 32T","description":"\u003cp\u003e\u003cspan\u003eThis sprocket allows you to use Honda type race cams on the Lifan big valve head.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982244131133,"sku":"TBW0414","price":17.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image111_d04cf1ee-a1f9-4067-9545-eb958cdaf983.jpg?v=1751312313"},{"product_id":"tb-parts-56-57mm-head-gasket-kit","title":"TB Parts 56\/57mm Head Gasket Kit","description":"\u003cp\u003e\u003cspan\u003eReplacement gasket kit for the 56mm (140cc) and 57mm (141\/146cc) bore kits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982261170493,"sku":"TBW0424","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image112_f4359c2a-436a-4317-b768-a7d225eb2596.jpg?v=1751312311"},{"product_id":"tb-parts-piston-ring-set-57mm","title":"TB Parts Piston Ring Set, 57mm","description":"\u003cp\u003e\u003cspan\u003eReplacement Ring Set for TB 57mm small dome pistons used in discontinued 141\/146cc Bore Kits (Pistons TBW0416 and TBW0417)\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982269690173,"sku":"TBW0441","price":18.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image77_11a60d2c-a77b-46ec-891c-4d5af224a4ae.jpg?v=1751312310"},{"product_id":"tb-parts-hd-springs-yx-jailing-lifan","title":"TB Parts  HD Springs – YX\/Jailing\/Lifan","description":"\u003cp\u003eHeavy Duty Clutch Springs – Replacement for TBW0415 or an upgrade for your stock clutch.\u003c\/p\u003e\n\u003cp\u003eNote: Fits main shaft mounted clutches on all YX and most Jailing and Lifan engines.\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982312321341,"sku":"TBW0538","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image116_58e7457e-e766-462a-9a34-df845b91c1ef.jpg?v=1751312305"},{"product_id":"tb-parts-piston-kit-60mm-143cc-for-4-valve-heads","title":"TB Parts Piston Kit – 60mm (143cc) – For 4 Valve Heads","description":"\u003cp\u003e\u003cspan\u003eReplacement piston for TB 60mm (143cc) 4 valve bore kit. Includes piston, rings, pin, and clips.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982347252029,"sku":"TBW0592","price":75.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image121_48830b39-3189-4f2e-832d-b4c475c8c57b.jpg?v=1751312298"},{"product_id":"tb-parts-valve-kit-zs-head","title":"TB Parts Valve Kit – ZS Head","description":"\u003cp\u003e\u003cspan\u003eReplacement valve kit for the Zongshen (ZS) Race Head only. Comes with everything shown in the picture.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982355902781,"sku":"TBW0599","price":45.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image122_390c7d3b-e56c-42c2-b1c6-71011974b411.jpg?v=1751312296"},{"product_id":"tb-parts-aluminum-cylinder-54mm-trx90-chinese-114cc-bore-kits","title":"TB Parts Aluminum Cylinder, 54mm – TRX90\/Chinese 114cc Bore Kits","description":"\u003cp\u003e\u003cspan\u003eReplacement 54mm aluminum cylinder for TB 114cc bore kits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982410559805,"sku":"TBW0721","price":144.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image124_274ffad8-1edf-4800-be4c-b9b0afc2eff2.jpg?v=1751312293"},{"product_id":"tb-parts-v2-race-head-imports-honda-type-but-different-stud-spacing","title":"TB Parts V2 Race Head – Imports (Honda type but different stud spacing)","description":"\u003cp\u003eReplacement V2 Race Head for all Import\/Chinese Honda Style V2 Race Head Kits (Honda type but has different stud spacing). Contains the valves, roller rocker arms, shafts and exhaust studs.\u003c\/p\u003e\n\u003cp\u003eMust be used with matching V2 head piston.\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982423044413,"sku":"TBW0751","price":372.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image78_fadf2101-b99f-43d9-ac2e-1e6ff42f4f33.jpg?v=1751312291"},{"product_id":"tb-parts-piston-ring-set-57mm-1","title":"TB Parts Piston Ring Set - 57mm","description":"\u003cp\u003eReplacement Ring Set for TB 57mm large dome pistons used in the TB 146cc Bore Kits.\u003c\/p\u003e\n\u003cp\u003e(Pistons TBW0449, TBW0617, TBW0823, and TBW0824)\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982438707517,"sku":"TBW0761","price":18.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image77_1a2098c7-5730-452d-ae86-8a9a7e768f22.jpg?v=1751312286"},{"product_id":"tb-parts-decomp-replacement-bolt-v2-decomp-race-head","title":"TB Parts Decomp Replacement Bolt – V2 Decomp Race Head","description":"\u003cp\u003e\u003cspan\u003eReplacement decomp bolt for decomp device in V2 Race Heads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982447653181,"sku":"TBW0766","price":3.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image128_74a5eb62-bac9-47b5-bdeb-f7a7d23ec968.jpg?v=1751312284"},{"product_id":"tb-parts-piston-kit-56mm-140cc-hc-yx140","title":"TB Parts Piston Kit, 56mm\/140cc, HC – YX140","description":"\u003cp\u003eTB parts 56mm\/140cc piston for the YX140 56\/57mm bore stroke engines. This piston works with the factory cylinder head and our V2 cylinder head.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Compression for use with Stock cylinder head or TBparts V2 cylinder head.\u003c\/li\u003e\n\u003cli\u003e13mm wrist pin\u003c\/li\u003e\n\u003cli\u003eYX140 56\/57mm bore stroke engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982468297021,"sku":"TBW0804","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image131_a151bcba-b0c2-4752-a5e2-2b7f5efb0c44.jpg?v=1751312280"},{"product_id":"tb-parts-piston-kit-57mm-13mm-pin-lifan-tb-v2-head","title":"TB Parts Piston Kit – 57mm, 13mm Pin – Lifan\/TB V2 Head","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eHigh compression, large dome, light weight racing piston. This piston is for use with Lifan big valve heads or the new TB V2 Race Head for Honda type Chinese engines (not the KLX110 type top end Chinese engines). Kit comes with Piston, Pin (13mm), Rings, and Clips.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982482485565,"sku":"TBW0823","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image133_9cb0acaa-dd0f-4ad7-ac66-3e0e9b39a872.jpg?v=1751312279"},{"product_id":"tb-parts-piston-kit-57mm-14mm-pin-lifan-tb-v2-head","title":"TB Parts Piston Kit – 57mm, 14mm Pin – Lifan\/TB V2 Head","description":"\u003cp\u003e\u003cspan\u003eHigh compression, large dome, light weight racing piston. This piston is for use with Lifan big valve heads or the new TB V2 Race Head for Honda type Chinese engines (not the KLX110 type top end Chinese engines). Kit comes with Piston, Pin (14mm), Rings, and Clips.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982490022205,"sku":"TBW0824","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image133_d4c6500f-da6b-4201-90cb-a0261c942db1.jpg?v=1751312277"},{"product_id":"tb-parts-top-end-gasket-kit-57-5mm","title":"TB Parts Top End Gasket Kit – 57.5mm","description":"\u003cp\u003e\u003cspan\u003eTB parts replacement 57.5mm Top End Gasket kit. For use with the YX 56 \u0026amp; 57mm Bore Kits using TB parts Honda style Race Head V2.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982499524925,"sku":"TBW0862","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image135_96c72c72-4b0f-4163-b79e-e680f1bb728d.jpg?v=1751312276"},{"product_id":"tb-parts-mx-performance-cdi-all-models-red","title":"TB Parts MX Performance CDI – All Models – Red","description":"\u003cp\u003e\u003cspan\u003eSpecifically designed for MX use. Improves throttle response across the power band while at the same time eliminating the rev limiter found in the stock CDIs. Best suited for 88cc+ Motors, but will work with the 50cc motors. Easy to install and comes with wiring harness adapter allowing it to fit most Chinese engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982558146877,"sku":"TBW0978","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image141.jpg?v=1751312270"},{"product_id":"tb-parts-valve-seals-zs-race-head","title":"TB Parts Valve Seals – ZS Race Head","description":"\u003cp\u003e\u003cspan\u003eTB parts replacement Valve Seal Set for the KLX110 style Zongchen Race Head (5.5mm).\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":48982815965501,"sku":"TBW1221","price":4.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image145_89edef95-073e-4809-a8ce-261f379015f6.jpg?v=1751312264"},{"product_id":"bbr-high-performance-cam-and-valve-spring-kit","title":"BBR High Performance Cam and Valve Spring Kit","description":"\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHigh performance camshaft and valve spring kit for the CRF150F and CRF230F. This is a great addition for the full on performance CRF150\/230F. Higher lift and duration than stock.  You MUST run the BBR Heavy Duty Valve Springs with the camshaft to prevent valve float (and the resulting engine damage) so we have included together in this kit for your convenience!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncludes BBR part numbers:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e411-HCF-1503\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e411-HCF-1504\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHonda CRF150F (2003-2005)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHonda CRF230F (2003-2019)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb style=\"font-size: 0.875rem;\"\u003eNote: This cam and valve spring kit only fits the 2003-2005 CRF150F or the 2003-2017 CRF230F. The 2006-2017 CRF150F is a completely different motor and will not accept these.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BBR","offers":[{"title":"Default Title","offer_id":49089307738429,"sku":"BBR15031504","price":249.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/0305CRF150CRF230camandsprings.jpg?v=1751312141"},{"product_id":"ngk-er9eh-standard-spark-plug","title":"NGK ER9EH Standard Spark Plug","description":"\u003cp class=\"\"\u003eHigh quality replacement spark plug, these are what most Japanese motorcycles come with from the factory.  Please double check your spark plug number before ordering - these fit a ton of bikes but it is always best to be sure. \u003c\/p\u003e\n\u003cp class=\"\"\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating\u003c\/li\u003e\n\u003cli\u003eHigh-grade alumina silicate ceramic insulator for superior strength and heat transfer\u003c\/li\u003e\n\u003cli\u003eCold-rolled threads to prevent cross-threading and damage to cylinder heads\u003c\/li\u003e\n\u003cli\u003eTrivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFits Daytona 190 engines \u0026amp; Honda Grom 2014-2020.  \u003c\/p\u003e\n\u003c!----\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":49097150267709,"sku":"ER9EH","price":15.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/3c6c-5e5ed2c55da2b.jpg?v=1751312137"},{"product_id":"bbr-camshaft-high-performance-crf150f-06-17","title":"BBR Camshaft - High Performance - CRF150F 06-17","description":"\u003cp\u003eBBR has finally created a new camshaft for the 2006-2017 CRF150F roller rocker motor! They have tested dozens of different grinds, over the years, and they all took away from the great characteristics of the OEM motor. Either the power was all top end (and it wouldn't even idle) or the power was all bottom end like an old school trail-bike motor. \u003cbr\u003e\u003cbr\u003eThis makes more power everywhere but moves peak horsepower to the \"fun\" spot. The best part about this camshaft (and our bore kit) is that it still runs on 92 octane. No need to hunt down race gas.\u003cbr\u003e\u003cbr\u003eCombine this with the BBR 195 Bore Kit and an aftermarket exhaust for a huge increase in power over your stock bike.\u003c\/p\u003e\n\u003cdiv class=\"bbr-bullet-points\"\u003e\n\u003cul class=\"bbr-ul\"\u003e\n\u003cli\u003eAdds 1+ hp to fully modified motor\u003c\/li\u003e\n\u003cli\u003eMakes more aggressive race-style of power\u003c\/li\u003e\n\u003cli\u003eBike still starts easily and idles smooth\u003c\/li\u003e\n\u003cli\u003eSame camshaft as used by the BBR Race Team\u003c\/li\u003e\n\u003cli\u003eNo exchange required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bbr-additional-info\"\u003e\n\u003ci\u003eNote: The BBR roller rocker camshaft for the 2006-2017 CRF150F installs exactly like the OEM camshaft and uses the same valve clearance specs (.006\" Intake, .010\" exhaust). BBR Recommends that you purchase an OEM Honda service manual for your bike and refer to it for installation steps.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eThis camshaft does not fit the 2003-2005 CRF150F motor (or the 2003-2018 CRF230F motor). They are completely different motors with almost no interchangeable parts. If you have the older motor, check out our \u003ca href=\"https:\/\/bbrmotorsports.shop\/Products\/Products.aspx?Prod=411-HCF-1503\" target=\"_parent\"\u003ePerformance Camshaft for the CRF150F 2003-2005\u003c\/a\u003e\u003c\/b\u003e\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote: This camshaft has been designed to work with the OEM Honda piston, or the BBR big bore kit piston, with OEM sized valves. Any other combination of parts will require that you manually check valve to piston clearance. This is typically done by assembling the motor with clay on the piston dome and carefully rolling the motor over by hand. The motor is then disassembled and the thickness of the clay is measured. We generally shoot for .050\" of clearance on these smaller 2-valve air-cooled motors. If you don't understand this process you should check with a qualified performance engine builder. \u003c\/b\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"BBR","offers":[{"title":"Default Title","offer_id":49122359804221,"sku":"411-HCF-1920","price":149.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image373.jpg?v=1751312123"},{"product_id":"tb-parts-valves-oversized-intake-daytona-190","title":"TB Parts Valves, Oversized intake – Daytona 190","description":"\u003cp\u003eReplacement valve kit for the Daytona 190 features :\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes 4 EV8 (21-4N) Stainless Steel Valves\u003c\/li\u003e\n\u003cli\u003e2 0.5mm oversized intake valves (25.5mm) and 2 Standard 21mm exhaust valves\u003c\/li\u003e\n\u003cli\u003eHigh quality valves made to spec for longer life!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49126878478653,"sku":"TBW1476","price":108.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image250_91c8d229-97ad-4b14-b5cd-e9ab2dbef452.jpg?v=1751312109"},{"product_id":"tb-parts-kibblewhite-bronze-valve-guide-4-daytona-190","title":"TB Parts Kibblewhite Bronze Valve Guide (4) – Daytona 190","description":"\u003cp\u003e\u003cspan\u003eHigh quality made in the USA! For use with the Daytona 190 only.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49126890570045,"sku":"TBW1479","price":119.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image253_2c1928d4-72b1-4a9e-84db-9473da29fed9.jpg?v=1751312106"},{"product_id":"tb-parts-kibblewhite-red-viton-valve-seal-4-daytona-190","title":"TB Parts Kibblewhite Red Viton Valve Seal (4) – Daytona 190","description":"\u003cp\u003eHigh quality made in the USA!\u003c\/p\u003e\n\u003cp\u003eNote – These are only for use with the Kibblewhite Daytona 190 Valve guides (not the original Daytona 190 valve guides).\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49126897942845,"sku":"TBW1480","price":15.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image254_fd6cf37f-56d0-44a6-b294-d6e7197f8cc4.jpg?v=1751312104"},{"product_id":"tb-parts-cylinder-57mm-138cc","title":"TB Parts Cylinder, 57mm – 138cc","description":"\u003cp\u003e\u003cspan\u003eTB parts 57 x 69mm 138cc cylinder for our Lifan 138cc big bore kit. This is a replacement cylinder for our Lifan 138cc big bore kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49127094321469,"sku":"TBW1608","price":108.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image289_b8ef325d-dd7e-4214-8f4e-2990e23ca9e6.jpg?v=1751312070"},{"product_id":"tb-parts-gasket-clutch-cover-gt80","title":"TB Parts Gasket, Clutch Cover – GT80","description":"\u003cp\u003e\u003cspan\u003eTB parts reproduction gasket for the Yamaha GT80 clutch cover or right side crankcase.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49127343161661,"sku":"TBW1703","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image310.jpg?v=1751312023"},{"product_id":"tb-parts-race-camshaft-lifan-tb-import-race-head","title":"TB Parts Race Camshaft - Lifan\/TB Import Race Head","description":"\u003cp\u003eThis cam provides easy bolt on power with its aggressive lift and duration without sacrificing low end torque. Its a high quality cam that uses NTN bearings and is a reasonably priced performance upgrade.\u003c\/p\u003e\n\u003cp\u003eSpecs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e.275″ intake valve lift and 230 degrees of duration @ .050″\u003c\/li\u003e\n\u003cli\u003e.275″ exhaust valve lift and 230 degrees of duration @ .050″\u003c\/li\u003e\n\u003cli\u003eSize: 42mm large bearing, 28mm small bearing\u003c\/li\u003e\n\u003cli\u003eApprox. 70mm center to center.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTBW0300 and TBW0414\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132434751805,"sku":"TBW9004","price":69.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image311.jpg?v=1751312021"},{"product_id":"tb-parts-150-160-race-head-v2-upgrade-kit-gpx-yx150-160","title":"TB Parts 150 160 Race Head V2 Upgrade Kit - GPX\/YX150\/160","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– Race Head V2 – Roller rockers, 30mm intake valve, 24.5mm exhaust valve,\u003cbr\u003e27mm intake port, 23mm exhaust port (valves installed).\u003cbr\u003e– Race Camshaft V2-2 for Race Head V2\u003cbr\u003e– Lightweight high compression domed 60mm piston with rings, pin, \u0026amp; clips\u003cbr\u003e– Head gasket kit – includes\u003cbr\u003ethe cylinder head o-ring set and an exhaust gasket.\u003c\/p\u003e\n\u003cp\u003eThis kit is to upgrade the cylinder head on stock YX\/GPX 150 or 160 engines to our new Race Head V2. The addition of this new head will dramatically increase the performance of your stock engine!!  This kit includes our new Race Head V2 and while the new head may appear to be the same on the outside as our other\u003cbr\u003eKLX110 type race head, internally it has gone through numerous changes. The addition of roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. The exhaust valve is now stainless as well (21-4N material).  This all adds up to a cylinder head that puts out a professional level of performance yet is still affordable for the privateer rider.  Also, included is a piston with bigger reliefs to match the larger valves of the new race head. Additionally, our head gasket kit includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  These are high quality parts and require no machining to the cases or other modifications – bolt on and go!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eTBW0459, TBW0577, TBW0377, TBW0306 \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132467847485,"sku":"TBW9028","price":459.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image313.jpg?v=1751312018"},{"product_id":"tb-parts-170cc-to-184cc-bore-kit-and-28mm-carb-kit","title":"TB Parts 170cc to 184cc Bore Kit and 28mm Carb Kit","description":"\u003cp class=\"MsoNormal\"\u003e170cc to 184cc Big Bore Kit and 28mm Carburetor Performance Kit:\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e– All aluminum ceramic plated 64mm cylinder with skirt\u003cbr\u003e– We increased the skirt height and size on the lightweight high compression 64mm piston with rings, pin, \u0026amp; clips to increase reliability and service life (picture is not updated yet showing\u003cbr\u003episton change)\u003cbr\u003e– Head gasket kit – includes the cylinder head o-ring set and an exhaust gasket.\u003cbr\u003e– 28mm Performance Carb (125 main\/50 pilot)\u003cbr\u003e– Rear Facing Intake Kit – not forward facing like the KLX110 style (picture is not updated yet showing intake change)\u003cbr\u003e– Jet kit for varying conditions and exhausts\u003cbr\u003e– Throttle Cable\u003cbr\u003e– Foam Air Filter\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eIf looking for easy bolt on power for the YX\/GPX\/Zongchen engines, this big bore and carb kit is it! Works great with your stock head or our new V2 Race Head. The kit includes an all aluminum ceramic plated 64mm cylinder (with skirt) which will increase your engine displacement and power. This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). We top off the bore kit with a 28mm performance carb kit that is easy to tune and works much better with this setup than your stock Chinese 26mm carb.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eAdditionally, our head gasket kit also includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money. The new bore kit consists of high quality parts and requires \u003cu\u003eno machining to the cases\u003c\/u\u003e – bolt on and go! \u003cu\u003eThis kit is only for the YX\/GPX\/Zongchen 150cc to 160cc engines with a a KLX110 type topend.\u003c\/u\u003e The increase in displacement will depend on your stock engine size. With this kit:\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e– A stock 150cc engine will increase to 170cc\u003cbr\u003e– A stock 155cc engine will increase to 177cc\u003cbr\u003e– A stock 160cc engine will increase to 184cc\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eTBW1250, TBW0503, TBW0590, TBW0301, TBW0556, TBW0327, TBW0490, TBW0491 \u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132495929661,"sku":"TBW9041","price":379.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image314_1fa9281c-9d5a-4b39-ae66-6b744addbe84.jpg?v=1751312017"},{"product_id":"tb-parts-170cc-to-184cc-bore-kit","title":"TB Parts 170cc to 184cc Bore Kit","description":"\u003cp\u003e Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll aluminum ceramic plated 64mm cylinder with skirt\u003c\/li\u003e\n\u003cli\u003eWe increased the skirt height and size on the lightweight high compression 64mm piston with rings, pin, \u0026amp; clips to increase reliability and service life (picture is not updated yet showing piston change)\u003c\/li\u003e\n\u003cli\u003eHead gasket kit – includes the cylinder head o-ring set and an exhaust gasket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eThis is our most affordable 64mm bore kit for the YX\/GPX\/Zongshen engines. Works great with your stock head or our new V2 Race Head.  The kit includes an all aluminum ceramic plated 64mm cylinder (with skirt) which will increase your engine displacement and power.  This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Additionally, our head gasket kit includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new bore kit consists of high quality parts and requires \u003cu\u003eno machining to the cases\u003c\/u\u003e – bolt on and go!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cu\u003eThis kit is only for the YX\/GPX\/Zongchen 150cc to 160cc engines with a a KLX110 type topend. \u003c\/u\u003e\u003c\/strong\u003eThe increase in displacement will depend on your stock engine size.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eWith this kit:\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e– A stock 150cc engine will increase to 170cc\u003cbr\u003e– A stock 155cc engine will increase to 177cc\u003cbr\u003e– A stock 160cc engine will increase to 184cc\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eTBW1250, TBW0503, TBW0590 \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132510216509,"sku":"TBW9042","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image315.jpg?v=1751312015"},{"product_id":"tb-parts-146cc-bore-kit-124cc-and-140cc-engines","title":"TB Parts 146cc Bore Kit - 124cc and 140cc Engines","description":"\u003cp\u003e 146cc (57mm) Bore Kit for Chinese, GPX, \u0026amp; YX 124\/140cc Engines with Big Valve Cylinder Heads (Lifan, V2, etc):\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e– 57x78mm Aluminum cylinder with steel liner\u003cbr\u003e– High compression large dome 57mm piston with rings, \u003cb\u003e13mm pin\u003c\/b\u003e, \u0026amp; clips\u003cbr\u003e– Head gasket kit\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The 146cc bore kit includes an an aluminum 57mm bore cylinder, light weight high revving piston and a head gasket kit. Bolt on power!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eImportant Note:\u003c\/b\u003e This kit will only work on Chinese 124 and 140cc engines with a \u003cstrong\u003e78mm tall cylinder \u003c\/strong\u003e\u003cb\u003e \u003cu\u003e\u003cstrong\u003e5\u003c\/strong\u003e7mm stroke, and 13mm piston wrist pin.\u003c\/u\u003e\u003c\/b\u003e Common models are Pitster\/GPX and Thumpstar but there are so many Chinese brands\/models that you absolutely need to know your stroke and piston wrist pin size. Many vendors also call 120cc engines “124” so its important you get the actual specifications from your engine vendor or measure yourself.  Unfortunately, we are unable to tell you what you have based on a brand name as there are so many unknown Chinese brands.  This kit is also recommended for use only with big valve heads such as the common Lifan head with 27\/23mm valves or our V2 Race Head for Chinese engines.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e: Its very important that you use Hondabond (or similar quality) sealer on the head gasket.  Also, don’t use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/p\u003e\n\u003cp\u003eOD of cylinder skirt is 59mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor use with Lifan 27\/23mm Head , Piranha YX 140 27\/23mm head or Other Big Valve heads\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTBW0601 – Cylinder\u003c\/li\u003e\n\u003cli\u003eTBW0424 – Gasket set\u003c\/li\u003e\n\u003cli\u003eTBW0823 – Piston\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132524011837,"sku":"TBW9066","price":163.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image316.jpg?v=1751312014"},{"product_id":"tb-parts-141cc-bore-kit-120cc-engines","title":"TB Parts 141cc Bore Kit - 120cc Engines","description":"\u003cp\u003e \u003cb\u003e141cc (57\u003c\/b\u003e\u003cb\u003emm) Bore Kit for Chinese 120cc Engines with Big Valve Cylinder Heads (Lifan, V2, etc):\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e – 57x78mm Aluminum cylinder with steel liner\u003cbr\u003e– High compression large dome 57mm piston with rings, \u003cb\u003e\u003cstrong\u003e14mm pin\u003c\/strong\u003e\u003c\/b\u003e, \u0026amp; clips\u003cbr\u003e– Head gasket kit\u003c\/p\u003e\n\u003cp\u003eThis will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The 141cc bore kit includes an an aluminum 57mm bore cylinder, light weight high revving piston and a head gasket kit. Bolt on power!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eImportant Note:\u003c\/b\u003e This kit will only work on Chinese \u003cu\u003e\u003cb\u003e120cc engines with a 78mm tall cylinder, 52.4x55mm bore \/ stroke, and a 14mm piston pin\u003c\/b\u003e\u003c\/u\u003e. Common models are SDG\/Sikk and RCM but there are so many Chinese brands\/models that you absolutely need to know your bore and stroke and piston pin size. Many vendors also call 120cc engines “124” so its important you get the actual specifications from your engine vendor or measure yourself.  Unfortunately, we are unable to tell you what you have based on a brand name as there are so many unknown Chinese brands.  This kit is also recommended for use only with big valve heads such as the common Lifan head with 27\/23mm valves or our V2 Race Head for Chinese engines.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e: Its very important that you use Hondabond (or similar quality) sealer on the head gasket.  Also, don’t use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKit Includes: \u003c\/b\u003eTBW0601 – 78mm tall Cylinder TBW0424 – Gasket set TBW0824 – Piston\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132527550781,"sku":"TBW9067","price":163.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image316_f0561267-2916-4b5b-881a-b3655e499f27.jpg?v=1751312012"},{"product_id":"tb-parts-146-bore-kit-vm26-carb-kit-124cc-140cc-engines","title":"TB Parts 146 Bore Kit \u0026 VM26 Carb Kit - 124cc\/140cc Engines","description":"\u003cp\u003e\u003cb\u003e146cc (57\u003c\/b\u003e\u003cb\u003emm) Bore Kit a\u003c\/b\u003e\u003cb\u003end Mikuni VM26 Carb\/Kit\u003c\/b\u003e\u003cb\u003e for Chinese 124\/140cc Engines with Big Valve Cylinder Heads (Lifan, V2 etc):\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e– 57x78mm Aluminum cylinder with steel liner\u003cbr\u003e– High compression large dome 57mm piston with rings, \u003cb\u003e13mm pin\u003c\/b\u003e, \u0026amp; clips\u003cbr\u003e– Head gasket kit\u003cbr\u003e– Genuine Mikuni VM26mm 606 Series Performance Carb (Not a cheap Chinese copy)\u003cbr\u003e– Intake Manifold Kit\u003cbr\u003e– Jet kit with 3 different sizes (Stock size is a #190 – Extra jets sizes of 155, 165 \u0026amp; 175)\u003cbr\u003e– Throttle Cable\u003cbr\u003e– Dual Layered Foam Air Filter\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The 146cc bore kit includes an an aluminum 57mm bore cylinder, light weight high revving piston and a head gasket kit. For additional performance, this kit includes the VM26 carb,intake kit, throttle cable, and air filter.  The combination of the 146 bore kit and the proven VM26 carb results in very impressive power and performance over your stock engine. Bolt on power!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003c\/b\u003e This kit will only work on Chinese 124 and 140cc engines with a \u003cb\u003e\u003cstrong\u003e78mm tall cylinder \u003c\/strong\u003e\u003c\/b\u003e\u003cb\u003e\u003cstrong\u003e \u003cu\u003e57mm stroke, and 13mm piston wrist pin.\u003c\/u\u003e\u003c\/strong\u003e\u003c\/b\u003e Common models are Pitster\/GPX and Thumpstar but there are so many Chinese brands\/models that you absolutely need to know your stroke and piston wrist pin size. Many vendors also call 120cc engines “124” so its important you get the actual specifications from your engine vendor or measure yourself.  Unfortunately, we are unable to tell you what you have based on a brand name as there are so many unknown Chinese brands.  This kit is also recommended for use only with big valve heads such as the common Lifan head with 27\/23mm valves or our V2 Race Head for Chinese engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/b\u003e: Its very important that you use Hondabond (or similar quality) sealer on the head gasket.  Also, don’t use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/p\u003e\n\u003cp\u003eOD of cylinder skirt is 59mm\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eFor use with Lifan 27\/23mm Head , Piranha YX 140 27\/23mm head or Other Big Valve head\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eIncludes: TBW0601, TBW0424, TBW0823, TBW0301, TBW433, TBW0399, TBW0413 \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132577030461,"sku":"TBW9069","price":341.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image318.jpg?v=1751312011"},{"product_id":"tb-parts-141-bore-kit-vm26-carb-kit-120cc-engines","title":"TB Parts 141 Bore Kit \u0026 VM26 Carb Kit- 120cc Engines","description":"\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cb\u003e141cc (57\u003c\/b\u003e\u003cb\u003emm) Bore Kit \u003c\/b\u003e\u003c\/span\u003e\u003cb\u003eand Mikuni VM26 Carb\/Kit \u003c\/b\u003e\u003cspan\u003e\u003cb\u003efor Chinese 120cc Engines with Big Valve Cylinder Heads (Lifan, V2, etc):\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e–57x78mm Aluminum cylinder with steel liner\u003cbr\u003e– High compression large dome 57mm piston with rings, \u003cb\u003e13mm pin\u003c\/b\u003e, \u0026amp; clips\u003cbr\u003e– Head gasket kit\u003cbr\u003e– Genuine Mikuni VM26mm 606 Series Performance Carb (Not a cheap Chinese copy)\u003cbr\u003e– Intake Manifold Kit\u003cbr\u003e– Jet kit with 3 different sizes (Stock size is a #190 – Extra jets sizes of 155, 165 \u0026amp; 175)\u003cbr\u003e– Throttle Cable\u003cbr\u003e– Dual Layered Foam Air Filter\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis will make a very nice difference in performance over your stock setup. Additionally, it is a very quick and easy upgrade as it does not require case boring. We found the right level of compression for increased performance while also keeping reliability in mind.  The 141cc bore kit includes an an aluminum 57mm bore cylinder, light weight high revving piston and a head gasket kit. For additional performance, this kit includes the VM26 carb,intake kit, throttle cable, and air filter.  The combination of the 141 bore kit and the proven VM26 carb results in very impressive power and performance over your stock engine. Bolt on power!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003c\/b\u003e This kit will only work on Chinese \u003cu\u003e\u003cb\u003e\u003cstrong\u003e120cc engines with a 78mm tall cylinder, 52.4x55mm bore \/ stroke, and a 14mm piston pin\u003c\/strong\u003e\u003c\/b\u003e\u003c\/u\u003e. Common models are SDG\/Sikk and RCM but there are so many Chinese brands\/models that you absolutely need to know your bore and stroke and piston pin size. Many vendors also call 120cc engines “124” so its important you get the actual specifications from your engine vendor or measure yourself.  Unfortunately, we are unable to tell you what you have based on a brand name as there are so many unknown Chinese brands.  This kit is also recommended for use only with big valve heads such as the common Lifan head with 27\/23mm valves or our V2 Race Head for Chinese engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/b\u003e: Its very important that you use Hondabond (or similar quality) sealer on the head gasket.  Also, don’t use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/p\u003e\n\u003cp\u003eIncludes: TBW0601, TBW0424, TBW0824, TBW0301, TBW433, TBW0399, TBW0413 \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132580307261,"sku":"TBW9070","price":341.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image318_d09030c8-7b14-4f78-bca7-7fe7f9e710dd.jpg?v=1751312009"},{"product_id":"tb-parts-150cc-to-160cc-bore-kit-for-4-valve-heads","title":"TB Parts 150cc to 160cc Bore Kit - For 4 Valve Heads","description":"\u003cp\u003e 150cc to 160cc Bore Kit for 4 Valve Cylinder Heads includes the following:\u003c\/p\u003e\n\u003cp\u003e– All aluminum ceramic plated 60mm cylinder\u003cbr\u003e– Lightweight short skirt 60mm 4 valve piston with rings, pin, \u0026amp; clips\u003cbr\u003e– Head gasket kit – includes the cylinder head o-ring set and an exhaust gasket.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis bore kit is designed to work the Kitaco and YX (Dirtmax) 4 valve cylinder heads and provides you with the stock size bore (60mm) to use with your 4 valve head. The kit includes an all aluminum ceramic plated 60mm cylinder. This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Also included is a lightweight high revving 4 valve piston.  Finally, our head gasket kit includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new bore kit consists of high quality parts and requires \u003cu\u003eno machining to the cases\u003c\/u\u003e – bolt on and go!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cu\u003eThis kit is only for the YX\/GPX\/Zongchen 150cc to 160cc engines with a KLX110 type topend.\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eIncludes: TBW0378, TBW0306, TBW0592 \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132585484605,"sku":"TBW9077","price":204.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image321.jpg?v=1751312006"},{"product_id":"tb-parts-114cc-bore-kit-race-head-mikuni-vm26-kit-and-race-cam","title":"TB Parts 114cc Bore Kit, Race Head, Mikuni VM26\/Kit and Race Cam","description":"\u003cp\u003e\u003cb\u003e114\u003c\/b\u003e\u003cb\u003ecc Bore Kit, Race Head, Mikuni VM26 Carb\/Kit and Race Cam for 86cc through 107cc Engines:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e \u003cb\u003e\u003cspan\u003eNEW \u003c\/span\u003eRace Head\u003c\/b\u003e - larger valves (now 25\/22mm) and better flow for increased\u003cbr\u003eperformance. Also has bigger cooling fins. Includes all necessary parts and \u003cb\u003e\u003cbr\u003ecomes assembled!\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance race camshaft\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum cylinder with steel sleeve (huge weight savings over your stock cast iron cylinder)\u003c\/li\u003e\n\u003cli\u003eCast in mounts on cylinder for aftermarket skid plates\u003c\/li\u003e\n\u003cli\u003eOversized cooling fins on cylinder for efficient heat dissipation\u003c\/li\u003e\n\u003cli\u003eHigh compression 54mm piston with rings, pin, \u0026amp; clips (replaces your low\u003cbr\u003ecompression dished or flat top piston)\u003c\/li\u003e\n\u003cli\u003eHead gasket kit\u003c\/li\u003e\n\u003cli\u003eGenuine Mikuni VM26mm Performance Carb\u003c\/li\u003e\n\u003cli\u003eIntake Kit for the Race head\u003c\/li\u003e\n\u003cli\u003eJet kit with 3 different sizes (Stock size is a #195 – Extra jets sizes of 155, 165 \u0026amp; 175)\u003c\/li\u003e\n\u003cli\u003eThrottle Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cspan\u003eNEW \u003c\/span\u003e\u003c\/b\u003eDual Layered Foam Air Filter (not shown in pic)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eThis kit is the complete kit to convert your stock motor into a powerful open class 114cc engine (\u003cu\u003emuch more powerful than the stock Chinese 107 and 125cc engines\u003c\/u\u003e) with tons of torque!  Our Race Head has bigger valves and better porting over the stock Chinese type E22 head. The head also allows you to use all cams made for the Honda engines so there is a greater variety of cams available based on your preference or type of racing.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis kit will work on all 86cc through 107 Chinese engines except models with a 3 valve head (3 valve Chinese heads typically have different stud spacing).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eWe recommend purchasing a high volume oil pump kit\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eInstallation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eIncludes: TBW0788, TBW0318, TBW0721, TBW316, TBW0399, TBW0477, TBW0301, TBW0385, TBW0300 \u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132593054013,"sku":"TBW9096","price":592.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image322.jpg?v=1751312004"},{"product_id":"tb-parts-race-head-v2-kit-honda-style-imports","title":"TB Parts Race Head V2 Kit - Honda Style Imports  #2","description":"\u003cp\u003e TB parts Honda Style Race Head V2 Kit. For use with the 13mm wrist pin 125cc \u0026amp; 140cc engines (57mm Stroke) (YX, GPX, Piranha, Jailing).\u003c\/p\u003e\n\u003cp\u003eThis kit converts an existing TBparts 146cc\/57mm big bore kit with a stock head to the V2 Race Head. The V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms allow the engine to rev quicker, farther, and make much more power than the stock cylinder head. This cylinder head adds a professional level of performance at an affordable price for the privateer rider. These are high quality parts – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 (valve, seals, and springs installed) covers and hardware included!\u003c\/li\u003e\n\u003cli\u003e28.5mm intake valve \u0026amp; 23.5mm exhaust valve\u003c\/li\u003e\n\u003cli\u003eForged aluminum roller rockers\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e26mm intake port, 23mm exhaust port\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eNote: This is only for use with 13mm wrist pin YX, GPX, Piranha, Jailing 120cc \u0026amp; 124cc engines. This kit will not work with the common Chinese 125cc 54x54mm engine.  Engine disassembly is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number: TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0823, TBW0862\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132596789565,"sku":"TBW9124","price":549.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image323.jpg?v=1751312003"},{"product_id":"tb-parts-race-head-v2-kit-honda-style-imports-1","title":"TB Parts Race Head V2 Kit - Honda Style Imports","description":"\u003cp\u003eTB parts Honda Style Race Head V2 Kit. For use with the 14mm wrist pin Chinese 120cc and 125cc engines.\u003c\/p\u003e\n\u003cp\u003eThis kit converts an existing TBparts 146cc\/57mm big bore kit with a stock head to the V2 Race Head. The V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms allow the engine to rev quicker, farther, and make much more power than the stock cylinder head. This cylinder head adds a professional level of performance at an affordable price for the privateer rider. These are high quality parts – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 (valve, seals, and springs installed) covers and hardware included!\u003c\/li\u003e\n\u003cli\u003e28.5mm intake valve \u0026amp; 23.5mm exhaust valve\u003c\/li\u003e\n\u003cli\u003eForged aluminum roller rockers\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e26mm intake port, 23mm exhaust port\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eNote: This is only for use with 14mm wrist pin Chinese 120cc \u0026amp; 124cc engines. This kit will not work with the common Chinese 125cc 54x54mm engine.  Engine disassembly is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number: TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0824, TBW0862\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132600459581,"sku":"TBW9125","price":549.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image323_f06e46ae-1b23-48a0-9434-c1ae58e2694f.jpg?v=1751312001"},{"product_id":"tb-parts-race-head-v2-146cc-big-bore-kit-yx125cc-yx140cc","title":"TB Parts Race Head V2 \u0026 146cc Big Bore Kit - YX125cc \u0026 YX140cc","description":"\u003cp\u003eTB parts V2 Race head kit \u0026amp; 146cc Big Bore Kit. For use with the 13mm wrist pin 125cc \u0026amp; 140cc engines (57mm Stroke) (YX, GPX, Piranha, Jailing).\u003c\/p\u003e\n\u003cp\u003eWant to nearly double the power of your engine?! Starting with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 146cc bore kit that squares up the bore to 57x57mm and makes for a strong power band adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e57x78mm (146cc) Aluminum Steel Sleeve Cylinder\u003c\/li\u003e\n\u003cli\u003e57mm (146cc) High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)\u003c\/li\u003e\n\u003cli\u003e13mm Piston Wrist Pin\u003c\/li\u003e\n\u003cli\u003e146cc Top End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eNo case boring\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Note: This kit will only work on Chinese 124 and 140cc engines with a \u003cstrong\u003e78mm tall cylinder \u003c\/strong\u003e \u003cu\u003e\u003cstrong\u003e5\u003c\/strong\u003e7mm stroke, and 13mm piston wrist pin.\u003c\/u\u003e YX, GPX, Piranha, Jailing 120cc \u0026amp; 124cc engines. This kit will not work with the common Chinese 125cc 54x54mm engine.  Engine disassembly is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number: TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0823, TBW0862, TBW0601\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132603703613,"sku":"TBW9126","price":599.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image325.jpg?v=1751312000"},{"product_id":"tb-parts-race-head-v2-146cc-big-bore-kit-honda-style-imports","title":"TB Parts Race Head V2 \u0026 146cc Big Bore Kit - Honda Style Imports","description":"\u003cp\u003eTB parts V2 Race head kit \u0026amp; 146cc Big Bore Kit. For use with the 14mm wrist pin Chinese 120cc and 125cc engines.\u003c\/p\u003e\n\u003cp\u003eWant to add huge power to your engine?! Start with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 146cc bore kit that squares up the bore to 57x57mm and makes for a strong power band adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e57x78mm (146cc) Aluminum Steel Sleeve Cylinder\u003c\/li\u003e\n\u003cli\u003e57mm (146cc) High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)\u003c\/li\u003e\n\u003cli\u003e14mm Piston Wrist Pin\u003c\/li\u003e\n\u003cli\u003e146cc Top End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eNo case boring\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Note: This kit will only work on Chinese \u003cu\u003e120cc engines with a 78mm tall cylinder, 52.4x55mm bore \/ stroke, and a 14mm piston pin\u003c\/u\u003e.  Engine disassembly is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number: TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0824, TBW0862, TBW0601\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132607734077,"sku":"TBW9127","price":599.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image325_0b24dcc6-2e5a-4141-af9f-c408e7e97206.jpg?v=1751311998"},{"product_id":"tb-parts-v2-146cc-big-bore-kit-mikuni-vm26-carb-kit-yx125cc-yx140cc","title":"TB Parts V2 146cc Big Bore Kit \u0026 Mikuni VM26 Carb\/Kit - YX125cc \u0026 YX140cc","description":"\u003cp\u003eTB parts V2 Race head kit, 146cc Big Bore Kit, and Mikuni VM26 Carb Kit. For use with the 13mm wrist pin 125cc \u0026amp; 140cc engines (57mm Stroke) (YX, GPX, Piranha, Jailing).\u003c\/p\u003e\n\u003cp\u003eWant to nearly double the power of your engine?! Start with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 146cc bore kit that squares up the bore to 57x57mm and makes for a strong power band. Finish it off with Mikuni’s VM26 carb in our carb kit adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e57x78mm (146cc) Aluminum Steel Sleeve Cylinder\u003c\/li\u003e\n\u003cli\u003e57mm (146cc) High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)\u003c\/li\u003e\n\u003cli\u003e13mm Piston Wrist Pin\u003c\/li\u003e\n\u003cli\u003e146cc Top End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eMikuni VM26 Carb Kit for proven performance, Ported manifold, gaskets, hardware, and throttle cable\u003c\/li\u003e\n\u003cli\u003eNo case boring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb style=\"font-size: 0.875rem;\"\u003eImportant Note: This kit will only work on Chinese 124 and 140cc engines with a \u003cstrong\u003e78mm tall cylinder \u003c\/strong\u003e \u003cu\u003e\u003cstrong\u003e5\u003c\/strong\u003e7mm stroke, and 13mm piston wrist pin.\u003c\/u\u003e YX, GPX, Piranha, Jailing 120cc \u0026amp; 124cc engines. This kit will not work with the common Chinese 125cc 54x54mm engine.  Engine disassembly to measure specs is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number: TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0823, TBW0862, TBW0601, TBW0301, TBW0433, TBW0399, TBW0413\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132611010877,"sku":"TBW9128","price":762.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image327.jpg?v=1751311996"},{"product_id":"tb-parts-v2-146cc-big-bore-kit-mikuni-vm26-carb-kit-honda-style-imports","title":"TB Parts V2 146cc Big Bore Kit \u0026 Mikuni VM26 Carb\/Kit - Honda Style Imports","description":"\u003cp\u003eTB parts V2 Race head kit, 146cc Big Bore Kit, and Mikuni VM26 Carb Kit. For use with the 14mm wrist pin Chinese 120cc and 125cc engines.\u003c\/p\u003e\n\u003cp\u003eWant to wake up your basic engine big time?! Start with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 146cc bore kit that squares up the bore to 57x57mm and makes for a strong power band. Finish it off with Mikuni’s VM26 carb in our carb kit adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).\u003c\/li\u003e\n\u003cli\u003eRace Camshaft\u003c\/li\u003e\n\u003cli\u003e57x78mm (146cc) Aluminum Steel Sleeve Cylinder\u003c\/li\u003e\n\u003cli\u003e57mm (146cc) High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)\u003c\/li\u003e\n\u003cli\u003e14mm Piston Wrist Pin\u003c\/li\u003e\n\u003cli\u003e146cc Top End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eMikuni VM26 Carb Kit for proven performance, Ported manifold, gaskets, hardware, and throttle cable\u003c\/li\u003e\n\u003cli\u003eNo case boring\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Note: This kit will only work on Chinese \u003cu\u003e120cc engines with a 78mm tall cylinder, 52.4x55mm bore \/ stroke, and a 14mm piston pin\u003c\/u\u003e. Engine disassembly is recommended to ensure this kit will fit.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Note\u003c\/b\u003e:\u003cstrong\u003e Do not use the original o-rings between the head and cylinder (not needed) but do use the large o-ring at the bottom of the cylinder between the cylinder and the engine case at the oil return. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKit Contents by Part Number; TBW0751, TBW0821, TBW0752, TBW1441, TBW0414, TBW0824, TBW0862, TBW0601, TBW0301, TBW0433, TBW0399, TBW0413\u003c\/p\u003e\n\u003c!----\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":49132613271869,"sku":"TBW9129","price":762.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/8055\/0205\/files\/Image327_c8602982-d030-4771-a823-a2aa3130b7c0.jpg?v=1751311995"}],"url":"https:\/\/keystonecycleparts.com\/collections\/other-bikes-engine.oembed?page=6","provider":"Keystone Cycle Parts","version":"1.0","type":"link"}