Shimano RD-M6100 Deore Rear Derailleur 12 Speed

For 1x system
Silent drivetrain in all gear positions
Decreased rear derailleur and chain tension in low gear
Bigger 13T pulley
Stable drivetrain in rough terrain
Low-profile design avoids damage from rocks
Chain stabilizer reduces chain drop, slap and noise
Compatible Chain: HG 12-speed
Low Sprocket Max: 51t
Low Sprocket Min: 51t
Max Front Difference: 0t
Cage Length: SGS Long Cage
Rear Speeds: 12
Top Sprocket Max: 10t
Top Sprocket Min: 10t
Total Capacity: 41t
Color: Black