XTR Dyna-sys 11-speed M9020 hosts a whole load of new technology keeping at the forefront of front derailleurs, it's truly the elite racers choiceDesigned specifically with modern trail bikes in mind, Shimano's XTR side swing technology front derailleur increases tyre clearance by 15mm, while new cable routing resulting in the lightest shifting action yet Side swing - side pull front derailleurs allow bike manufactures to continuously push frame design without limitationLight alloy cage reduces weight and improves performance, nickel-plated finish prevents chain wearDeveloped specifically for double chainsets and frames with a direct mountSide pull cable routing 34-38T maximum top gear, 10T total capacity Dyna-Sys 11-speed design - for use with Dyna-Sys 11-speed drivetrains