88cc V2 Race Head & Mikuni VM26 Bore Kit Honda - CRF50 XR50 CRF70 XR70 - TBW9115 crankshaft Replacement Parts:

Replacement Parts:

This combination makes these work twice as well as the underwhelming OEM forks in your backyard on the local mini MX track

(May fit other brand kits

Street Application - Stock Carb Only

Mikuni VM26 606 Series Carb Rebuild Kit

88cc V2 Race Head & Mikuni VM26 Bore Kit Honda - CRF50 XR50 CRF70 XR70 - TBW9115 crankshaft Replacement Parts:TB Parts 88cc Race Head V2 Kit , 52mm Bore Kit, & Mikuni VM26 Carb Kit. Converts the following stock models to 88cc: 1982 and newer Honda Z50, CT70, XR50, XR70, CRF50, & CRF70. Starting with the V2 cylinder heads larger stainless steel (21 4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 52mm bore kit