Features: Mid-cage derailleur works with cassettes up to 32 teeth WiFLi™ delivers a wider range of gears than your standard triple, faster shifts through two chainrings and every gear on the rear cassette, and with significant weight savings Weight: 191g AeroGlide Pulleys New tooth pulley design with a sound damping effect for a super efficient and silent ride experience. Bottom and top pulleys benefit from this feature. Exact Actuation When we launched our road technology from scratch we reapplied our MTB proven SRAM 1:1 actuation ratio (shifter cable travel : derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilize the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. WiFLi SRAM\'s WiFLi™ technology accommodates a wider range of gears than a standard short-cage road derailleur. Compared to a triple chainring setup, it provides faster shifts and significant weight savings. Specifications:Speeds: 11Material: Aluminium outer & inner cages, Aluminum links, Stainless steel hardwareWeight: 191gCompatibility: Cassettes from 11-26 to 11-32Finish: Grey & black anodized finishTechnology Highlight(s): Exact Actuation™, AeroGlide Pulleys™, WiFLi™