The SLX M7100 series of derailleurs deliver advanced shifting performance with decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

Advanced shifting performance provides the confidence to enjoy any trail
Fast and shockless shifting
HYPERGLIDE+
Extra wide range 12-speed drivetrain -10-51T (12-speed)
Silent drivetrain in all gear positions
Decreased rear derailleur and chain tension in low gear
Bumper structure at rear derailleur pulley cage reduces impact shock by absorbing chain impact on aggressive terrain
Bigger 13T pulley
Stable drivetrain on rough terrain
Low-profile design
SHIMANO SHADOW RD+

Specifications
B-Axle - Hollow axle Yes
B-axle 2 - Hollow axle Yes
Compatible chain HG 12-speed
Direct attachment (Conventional) Yes
Fluoric coated link bushings 4
Low sprocket - Max. 51T
Low sprocket - Min. 45T
Max. front difference 0T
Pulley - Sunken type pulley bolt Yes
Pulley - Teeth 13T
Pulley cage SGS
Rear speeds 12-speed
Top-Normal Spring Type Shimano Shadow RD+
Top sprocket - Max. 10T
Top sprocket - Min. 10T
Total capacity 41T

Mfr Claimed Weight
316g