MUQZI | MUQZI 12T Narrow-Wide Rear Derailleur Pulley Ceramic Bearing Super Lubricated Bike Jockey Wheel Accessory

MUQZI 12T Jockey Wheel

Feature: This bicycle derailleur pulley features premium aluminum alloy and super lubricated silent ceramic bearings. It can be used for a long time. The design of positive and negative gears can effectively restrain the lateral swing of the chain and make the speed more accurate.

Product information: Material: Pulley 6061 Aluminum Alloy Weight: about 11.8g Specification: 12T How to choose the right size: The number of teeth is less than or equal to the number of original Pulley teeth

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