Shimano's XT level of components is iconic in the mountain biking realm, famous for pro performance and reliability at a great price point. The XT Shadow+ 12-speed rear derailleur is designed for fast, smooth and precise shifting performance optimised to take on any trail

The XT RD-M8100 is made for use with Shimano 1x12 drivetrains and is suitable to use with cassettes with a low (largest) sprocket size of up to 51 teeth

Genuine, brand new, boxed Shimano product - Biketart are an official UK Shimano stockist.

• 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)
• SGS cage
• Average weight 284g