- Big Bore Kit
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Big Bore kit Honda Z50 XR50 CRF50 88cc Stage 1 88 to 99 2000 to 2022
50 Caliber Racing Stage 1 88cc Big Bore kit (52mm bore). This is a great inexpensive way to pump up your old Honda 50 engine. This kit is recommended for those who dont want to spend a fortune but still want to see a nice power increase over the stock engine. This kit can be installed by anyone with basic mechanical skills that is not afraid to turn some nuts and bolts. 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 bore kit.
High volume oil pump is recommended. Price: Price is for 1 Big Bore Kit.