Big Bore Kit 186cc with 66mm piston size for Kawasaki KLX140 – 2008-2023
This kit come with a Forged Piston 66mm size and cylinder with ceramic coating for better heat transfer!

Please note that this kit need to bore out the crankcase, outer cylinder size is 71mm

We also strongly recommend that piston to valve clearance to be checked with this and all big bore kits on the KLX140.