The Flagship
With 27 years of development, Shimano introduces the latest version of the ultimate MTB race components - XTR. Designed to meet the most competitive mountain bike racing needs with second-to-none performance. The new XTR M9100 Series brings the most versatile groupset for XC, enduro and marathon racing.
Optimised for new drive system this will give you trouble free shifting through a range of 10-51 Teeth. With a bigger 13T pully for smoother more silent operation
and improved ground clearance , you'll be ready for more aggressive riding.

Please note:The cage on this derailleur is specifically designed and shaped for functionality and performance.
While it may appeared "bowed" or out of shape, rest assured this is correct and intentional by the manufacturer.. SERIES: XTR M9100 Series
. 12 Speed
. Range: 10-51T
. Average weight: 237 g
. B-Axle: Hollow axle
. Fluoric coated link bushings: 8
. Pulley bearings: Sealed Bearing
. Sunken type pulley bolt
. Pulley Teeth: 13T
. Pulley cage: SGS