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
Shimano Altus RD-M310 7/8 Speed Rear Derailleur | Jenson USA
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