Sram force 22 11 speed front derailleur with chain spotter the sram force 22 front derailleur features yaw technology instead of simply moving back and forth the derailleur cage actually rotates to maintain a consistent angular relationship with the chain it improves the shifting speed and precision while eliminating the need for shifter trim durable light fast precise and optimized to work with x glide r chainrings complete with an integrated chain spotter which protects your frame without