88cc Big Bore Kit Honda Z50R 1988-99 XR/CRF50 2000 to 2014

Aftermarket Big Bore Kit

88cc Big Bore Performance Kit (52mm)
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

We recommend purchasing a high volume oil pump 

Correct for the following models

Z50R 1988-99
XR/CRF50 2000 to current