SHIMANO DEORE XT RD-M8100-SGS

Quick and precise shifting performance for a variety of trail conditions Faster, shockless shifting 12 speed wide range drivetrain with HYPERGLIDE+ cassette sprocket 10-51T tooth set Quiet drivetrain in all gear positions Rear derailleur reduces chain tension in low gears New bumper stop added to rear derailleur pulley cage Bumper stop 13T pulley Stable drivetrain even on rough terrain Low profile design Shimano Shadow RD+ 10-51T (12 speed)