Shimano Altus RD-M310 Rear Derailleur - 78 Speed Long Cage Silver. The Shimano RDM310-Smart rear derailleur has a Wide Link design for increased rigidity and precise shifting.
Oversized 15-tooth tensioner and 13-tooth guide pulleys reduce noise and wear
SMART CAGE pulley plate provides more ground clearance
Advanced light action with precise shifting
Compatible with Shimano HG 6/7/8 speed chains
| Largest Cog | 34 |
| Color | Silver |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | 10x1 Standard |
| Drivetrain Speeds | 7 |
| Drivetrain Speeds | 8 |
| Weight | 326 |
| Chain Wrap Capacity (teeth) | 43 |
| Cage Length | Long |
