Shimano Zee RD-M640 Shadow Plus 10 Speed Rear Derailleur - Rear Derailleur - 10 Speed - Black YGroup_7034288767021 All-Mountain and Enduro riders of

All-Mountain and Enduro riders of all levels looking for the simplicity and reliability of a press button and fly closure

Formula has combined a state of the art dual air spring with the tunability of the CTS system

or a great spring/autumn outer layer to take the worst off the chill

and who have basically a very smooth style

Shimano Zee RD-M640 Shadow Plus 10 Speed Rear Derailleur - Rear Derailleur - 10 Speed - Black YGroup_7034288767021 All-Mountain and Enduro riders ofThe 10 speed Zee RD M640 features Shadow Plus technology that significantly reduces chain noise and offers a more stable drivetrain. Features: Shadow RD + Short cage 10 speed only Shadow RD technology: Super low profile design with built in chain stabilizer Freeride spec 11 36T Capacity DH Spec 11 28T Capacity