Shimano XT M8100 Rear Derailleur 12 Speed SGS

The Shimano XT RD-M8100 1 x 12 speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface.

The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.

• Shadow RD+ For optimal chain retention
• RD-M8100-SGS  
• 51T max cog size
• Works with both 12-speed 10-51 and 10-45-teeth cassettes
• Pulley size with 13T increased for reduced friction