SHIMANO SLX RD-M7100-SGS Rear Derailleur 1x12-speed

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