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YOU MUST USE A STOCK XR50/CRF50 HEAD AND CRANK WITH THIS KIT WE SUGGEST A BIGGER CARB AND MANIFOLD WITH THIS KIT ALUMINUM CYLINDER, WITH STEEL SLEEVE MOLDED IN, BORED, HONED AND READY TO GO RIGHT FROM THE FACTORY

THIS WORKS TO CONVERT A 50CC TO A 88CC DISPLACEMENT ON THE FOLLOWING HONDA MODELS.

ALL XR50'S

ALL CRF50'S

Z50R 1982 THRU 1999

XR50_CRF50_ALL Z50R_1982_TO_99 ALLOY 88CC_CYLINDER_KIT (1-12_2-11_1-47) 1-12_2-11_1-47$109.99