The Shimano XT FC-M785 2x10-speed chainring impresses with fast and quiet shifting processes thanks to its SG-X design and integrates perfectly into the HyperDrive concept for the front drivetrain. It has a bolt circle diameter of 104 or 64 mm and is made of aluminium. Shimano Dyna-Sys technology means not only a 10th gear, but optimal functional efficiency.