This TB 88cc Big Bore Performance Kit (52mm) is for use with the stock OEM Honda cylinder head. It includes the following features:
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- High compression 52mm piston with rings, pin, & clips
- Head gasket kit
- NO case boring required
- Easy bolt on power!!
The kit will work on the following Honda models:
- Z50 K1-81
- CT70 K0-81
- All SL70 & XL70
- All ATC70, TRX70, & CL70
We also recommend purchasing a high volume oil pump kit (available in this section). It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).