Wide link design increases durability and precise shifting. 7/8 speed design. 13t guide pulley and 15t tension pulley for long wear. Max sprocket: 34t. Top-Normal (standard action) return spring.
| | Shimano Altus Rear Derailleurs - Shimano Altus M310 7/8-Speed Rear Derailleur Black | 18.99 |  | |
 | Shimano Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310 (Black) |  | 19.19 | |