50 Caliber Racing stage 1 88cc big bore kit for Honda XR and CRF 70's. Fits all years.
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50 Caliber Racing Honda 70 Stage 1 88cc Big Bore kit (52mm bore)
- 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 (can still run pump gas)
- Head gasket kit includes all gasket needed to install the bore kit.
- All XR and CRF 70's (All Years)
*High volume oil pump is recommended