2PCS CNC 7075 Alloy Bike Jockey Wheels 11T 13T Steel Bearing Derailleur Pulley
Upgrade your drivetrain with this2-piece CNC-machined 7075 aluminum alloy jockey wheel set, available in11T and 13T sizes. Featuring smoothsteel bearings, these rear derailleur guide pulleys reduce friction for precise shifting and improved drivetrain efficiency.