Altus Rear derailleur offering Crisp Performance on- and Off-Road for 9-Speed drivetrains. Wide Link Design Increases Design and Service Life. 11-Tooth Pulleys for Reduced Pulley wear and Chain
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Amazon.com : Revere Shimano Altus Mountain Bike 7/8-speed Rear Derailleur - Direct Mount - RDM310 : Sports & Outdoors
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