This is the SRAM Force 22 Yaw Front Derailleur. It's the front derailleur that changed everything, now with SRAM Force 22, giving riders the freedom to shift with incredible speed into either chainring, with no trim and no chain rasp. The Yaw(TM) rotating front derailleur cage was just one more elegant solution to a problem that plagued drivetrains for decades. Instead of multiple shifts using trim, with confusing microshifts, the SRAM Force 22 Yaw(TM) Front Derailleur actually rotates to maintain a consistent angular relationship with the chain. As a result, shifts feel more direct, more precise, system that works as one with the chain, cransket and chainrings. Features: Yaw(TM) cage rotates in line with chain, improving the shifting speed and precision while eliminating the need for shifter trim. TRUE 22 - twenty-two usable gears in all gear combinations with no rasp or rub. Slim spring design eliminates frame interference. Durable, light, fast, precise and optimized to work with X Glide R(TM) chainrings. Precision alignment markings. Integrated chain spotter protects your frame, installs and adjusts independently of the derailleur itself. Specifications: Speeds: 2 Material: Steel Outer cage, Steel Inner cage, Composite Tail Weight: 79g (Braze-on), Chain spotter: 10.2g Compatibility: SRAM RED 22 & Force 22 Front Shift-Brake levers & X GlideR Chainrings, SRAM R2C Aero SL-1190 shifters, SRAM R2C Aero SL-1150 shifters, SRAM 900 Aero brake levers, SRAM 500 Aero shifters Finish: Black Anodized Finish Technology Highlight(s): Yaw(TM)