Shimano RD-M8120 XT 12-speed rear derailleur, Shadow+, SGS, for double

• XT Shadow plus 12-speed double rear derailleur for the ultimate in shifting performance and durability
• 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
• Full carbon fibre outer pulley cage saves weight while alloy inner cage increases rigidity
• 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 XTR M9100 12-speed double drivetrains
• Durable sealed 13T bearing pulleys for low friction
• Top normal spring uses the spring to select higher gears
• Max front difference 10T
• Max low sprocket: 45T (2x 12-speed)
• 45T capacity SGS cage
• Average weight 290g
• RDM8120SGS