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 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 240g .

Select Option: SGS Double M7120
Brand: Shimano
Part Type: Rear Derailleur
Colour: Black
Number of Items: 1
Compatible Brand: Shimano
Country/Region of Manufacture: Japan
Type: Rear Derailleur