LEBYCLE 11T 13T Mountain Bike Rear Derailleur Pulley Guide Roller Bicycle Steel Bearing Jockey Wheel Cycling Parts. Specifications: 11T/13T. 2pcs 1x rear derailleur guide wheel. Main body material: 7075 aluminum alloy main body + steel bearing.
13T Bike Rear Derailleur Pulley Guide Bearing Jockey Wheel (Black)
13T Bike Rear Derailleur Pulley Guide Bearing Jockey Wheel (Black) DE
13T Bike Rear Derailleur Pulley Guide Bearing Jockey Wheel (Red)
