Please call our store to verify bike inventory.
Due to high demand for bikes, availability on our website does not reflect current stock.
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