Shimano XTR RD-M9100 Shadow+ 12sp Long Rear Derailleur

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.

SHIMANO SHADOW RD+
Optimized for new drive system
10-45T (12-speed)
10-45T (11-speed)
Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear
Add bumper at rear derailleur pulley cage for silent drive
Bigger 13T pulley
10-51T (12-speed)
Enhance shifting performance
Low sprocket combination
Silent drivetrain
Low profile design MODEL NO: RD-M9100-SGS
SERIES: XTR M9100 Series
Average weight: 240 g
B-Axle: Hollow axle
Compatible chain: CN-M9100
Direct attachment (Conventional)
Fluoric coated link bushings: 8
Low sprocket: Max. 51T
Low sprocket: Min. 45T
Max. front difference: 0T
Pulley bearings: Sealed Bearing
Sunken type pulley bolt
Pulley Teeth: 13T
Pulley cage: SGS
Rear speeds: 12
Top-Normal Spring Type: SHADOW RD+
Top sprocket: Max. 10T
Top sprocket: Min. 10T
Total capacity: 41T