Shimano XTR M9000 Shadow+ 11-Speed Rear Mech. This Shimano XTR M9000 Shadow+ 11-Speed Rear Mech features a refined Shadow RD Plus clutch rear derailleur, a new front derailleur structure and a new XTR chain (CN-HG900-11), to offer industry-leading drivetrain stability Improved Shifting. This XTR rear derailleur has Shimano’s Shadow+ design, which optimises the slant angle to lower shift effort. In turn, the XTR rear derailleur has improved shifting and driving stability as the derailleur’s low-profile delivers protection from harm’s way. The new Shadow+ clutch has a simpler external clutch adjustment, and the Shimano XTR M9000 Shadow+ 11-Speed Rear Mech has a wider range of adjustment for easier setup Features: Maximum Front Difference: 10TMaximum Low Sprocket: 40TFull carbon fibre outer pulley cage saves weight while alloy inner cage increases rigidityCold forged wide alloy links and pivot bodyFour fluorine-coated link pin bushingsXTR Shadow+ Dyna-Sys 11-speed rear derailleur for the ultimate in shifting performance and durabilityShadow+ features a super low-profile design and optimized slant angle for super light shifting actionShadow+ uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shiftingSingle tension spring prevents contact with the chainstay resulting in a silent rideDirect cable routing prevents snagging from any trail side hazardsStrong return spring for a positive shifting feelImproved cable pull ratio provides a more accurate shift actionSpecifically designed to work with XTR M9000 11-speed Dyna-Sys 11-40T cassette and drivetrainDurable sealed bearing pulleys for low frictionTop normal spring uses the spring to select higher gears37T capacity GS cageA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products) Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.