7 speed freewheel ,11-13-15-18-21-24-32 teeth. DNP Electric bike 7 Speed freewheel, fits motorized freewheel hub and standard threaded freewheel hub. 32T biggest sprocket.Compatible with e-bike conversion, fat bike, cargo bike, city bike, commuting bike. Total height: 37.1mm+/-0.1mm, Weight:501g+/-1g. Designed for E-bike, ratchet mechanism is high strength and durable
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