Shimano Altus RD M310 7 Speed 8 Speed Black MTB Rear Derailleur RD-M310 The Shimano Altus RD-M310 is an entry-level MTB rear derailleur designed for smooth, reliable shifting on bikes with 7-speed or 8-speed drivetrains. It’s a popular upgrade or replacement for basic derailleurs, offering better durability and performance for everyday riding.🔧 Key Features
Compatible with 7 & 8-speed systems (Shimano/SRAM spacing)
Light-action design for smoother, easier gear shifting
Double servo-pantograph mechanism improves shifting precision and stability
Teflon-coated bushings reduce friction and wear
Low-profile design keeps derailleur close to cassette for better performance and protection