SHIMANO RD-M310 ALTUS rear derailleur black

The Shimano RD-M310 rear derailleur is one of the most popular rear derailleurs on the market, thanks in part to its excellent price-to-quality ratio. The derailleur is designed to work with 7- or 8-speed drivetrains.

Properties:
* Mega Pulley - a larger 15T tension pulley and a 13T guide pulley to reduce grinding and wear,
* Smartcage trolley,
* advanced Light Action functions,
* low-friction pin bushings,
* SIS rear indexed shifting system.

Color - black
Fastening - screw