The Shimano Altus M310 is an excellent value rear derailleur that offers great performance. Built for a 7 or 8-speed drivetrain, it has the capacity to handle a double or triple crankset.
- Cage Length: Long Cage (SGS)
- Max Sprocket: 34 Tooth
- Total Capacity: 43 Tooth
- Speed: 7/8 speed
- Weight: 326g