Seller notes

Brand new RACING PERFORMANCE TRANSMISSION VARIATOR BELT CLUTCH PULLEY SET for 50cc 80cc 100cc GY6 Chinese Scooter Moped ATV Go Kart w/ GY6 139QMB OR 1P39QMB engine MUST HAVE transmission clutch upgrade kit for your BBK upgrade projects. MUST DO installation guide:Must use same weights for all 6 slots or you are risking to damage the clutch Swap both the red main spring and 3 torque springs with the yellow ones provided in the kit if you prefer faster engaging Generally in flat ground riding, mor...

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