Open: Wed-Thu-Fri 12-6, Sat 12-5 Sun 1-4, Closed: Mon and Tue
The Shimano Altus RD-M310 rear derailleur is a quality, durable replacement rear derailleur for 7 and 8-speed drivetrains.- 13t upper and 15t lower pulleys- Maximum cog size: 34t- Total capacity: 43t