Shimano RD-M8100 12 Speed Rear Mech (for single ring, 10-51 cassette)

• XT Shadow plus 12-speed rear derailleur for fast and precise shifting performance optimized to take on any trail
• Shadow plus features a super low profile design and optimized slant angle for super light shifting action
• Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
• Single tension spring prevents contact with the chainstay resulting in a silent ride
• Rubber bumper on pulley cage for added silent drive
• 13T pulleys and decreased derailleur tension prevent high chain tension in low gears
• Direct cable routing prevents snagging from any trail side hazards
• Cold forged wide alloy links and pivot body
• Four fluorine-coated link pin bushings
• Strong return spring for a positive shifting feel
• Specifically designed to work with 12-speed 1x drivetrains
• Durable sealed 13T bearing pulleys for low friction
• Top normal spring uses the spring to select higher gears
• Max low sprocket: 51T (1x 12-speed)
• 41T capacity SGS cage
• Average weight 284g