Sram XX1 Type 2.1 11 Speed Rear Derailleur Medium Cage Black/RedThe Sram XX1 Type 2.1 11 Speed Rear Derailleur is a professional grade derailleur built with carbon fiber and aluminum featuring a roller clutch pulley cage and cage lock feature for easy wheel installation. The "horizontal parallelogram" design and pulley offset uses X-HORIZON™ keeps the chain gap constant across all 11 gears, providing fast, precise shifts. By limiting all movement to the horizontal axis, this design is faster, reduces shift force and eliminates ghost shifting. Roller Bearing Clutch technology reduces bounce and chain slap. Cage Lock technology makes wheel removal and installation easier than ever before. Paired with the XX1 shifter, the X-HORIZON™ rear derailleur forms the backbone of X-ACTUATION™ technology for unbelievably smooth shifting action. Must be used with SRAM 1x11 shifter and cassette. Cannot be used with double or triple chainrings. Medium Cage. Weighs 220g. Available in Black/Red.710845764011
