The Shimano Altus M310 is an excellent value rear derailleur that offers great performance. Built for a 7 or 8-speed drivetrain, it has the capacity to handle a double or triple crankset.

Features

Cage Length: A Long Cage (SGS)
Max Sprocket: A 34 Tooth
Total Capacity: A 43 Tooth
Speed: A 7/8 speed
Weight: A 326g