Weojeviy Bicycle Performance Components, 420 Chain 24t Rear Sprocket Monkey Shaped Bicycle Steel Alloy 30mm Rear Drive Sprocket Z50a Z50 Z50r Z50jFeature: 1. Applicable Model: The 420 chain 24T rear sprocket is applicable for Z50A Z50 Z50R Z50J Monkey Bike, please confirm whether your model is applicable before buying. 2. Function: The rear drive s..