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HRC kit includes E22 Race head and performance cam
23/20 valve head with Red caps
Kills a stock CRF50 head in performance
Not Quite as good as TB Race head especially in the upper RPM range
TB 20mm or 22mm mikuni carbs with race head type intakes will work well with this set up
Also includes for a full 88cc race head set up Trail Bikes 88cc Big Bore Performance Kit (52mm) [TBW0928] 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 tbwo190 52mm piston with rings, pin, & clips Head gasket kit .high-volume oil pump is included
88cc kit = $124
Tb oil pump = $25
Fits all 88-UP XR and CRF50
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