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57mm piston with rings
This is NOT the Pitcross carcass
and the followability in the high revolution range is improved
TBW0949 - Race Head & Valves Assembly
These kits can can make as much power as the larger 125cc Chinese engines
88cc Big Bore Race Kit - 69-81 Z50 - 68-81 CT70 - TBW0925 oil temp gauge 57mm piston with rings88cc 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 Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal). Fits: 69 81 Honda Z50 68 81 Honda
