Shimano Altus Rear Derailleur
The Altus M310 is a high performing rear derailleur. Ideally suited to a 7 or 8-speed drivetrain, it has enough capacity to handle a double or triple crankset. With its light action design, teflon coated bushings and efficient spring, this derailleur is perfect for leisure cycling and touring.

Features

• Direct Mount
• 7/8 Speed Rear SIS Index Shifting
• Total capacity 43T, Max Sprocket 34T, Smallest 11T
• Mega pulley / Smartcage pulley plate
• Cage plate length 65mm
• Weight 326g