Bike Sram for ZTTO 11T MTB Bicycle Rear Derailleur 4/5/6mm Jockey Wheel Ceramic Bearing Pulley AL7075 Bike Guide Roller Idler

Bike Sram for ZTTO 11T MTB Bicycle Rear Derailleur 4/5/6mm Jockey Wheel Ceramic Bearing Pulley AL7075 Bike Guide Roller Idler

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