For Shimano Altus7/8 Speed RD-M310 Rear Derailleur Hangar Mount RD-RDE-M310 NEW
Mount Type: Standard derailleur hanger mount. 1x RD-M310 Altus Rear Derailleur (Long Cage - Black). Designed for smooth, precise shifting, the RD-M310 is perfect for 7 or 8-speed mountain bikes, hybrid bikes, and recreational rides.