The Shimano Altus M310 7/8-Speed Rear Derailleur features an advanced light-action, long-cage design with Teflon coated bushings. What sets this derailleur apart from others of its kind is its unique 13-tooth upper and 15-tooth lower pulleys that provide a 43-tooth chain wrap capacity, and enable them to rotate with less friction.
Rear Derailleurs
Altus M310 7/8-Speed Long Cage Rear Derailleur
Original price was: $27.99.$11.20Current price is: $11.20.