Shimano Deore RD-M5100 11 Speed MTB Bike Rear Derailleur Shadow RD SGS Max Cog 51T

Model: RD-M5100-SGS
Level: Deore
Color: Black
Speed: 11 Speed
(Advise 1x11 Speed)
Mount: Direct mount
Cage: Long cage
Compatible chain: HG 11-speed
Total capacity: 40T
Max sprocket: 51T
Min sprocket: 11T
SHIMANO SHADOW RD+ design
DEORE M5100 rear derailleur delivers consistent MTB shifting performance over rough terrain
low profile design avoids damage from rocks 
SHIMANO's Chain stabilizer reduces chain drop, slap and noise
1x11-speed SHIMANO SHADOW RD+ rear derailleur
Decreased rear derailleur and chain tension in low gear, bigger 13T pulley