7cogs dnp freewheel, teeth numbers:11-13-15-18-21-24-28 Electric bike specific 7 Speed freewheel,Made of high strength and durable chromoly Steel Total height: 37.1mm+/-0.1mm(Leave min 39mm for compable hub), Weight:485g+/-1g..Nickel plated surface treatment. Designed for E-bike, ratchet mechanism is high strength and durable, able to withstand the torque generated from the electric motor. Fits standard motorized rear hub with threaded freewheel mount, compatible also with standard threaded bicycle freewheel hub.
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