Sram red 22 11 speed front mech the sram red 22 front derailleur changes everything including offering every gear combination with no chain rub or rasp instead of simply moving back and forth the derailleur cage actually rotates to maintain a consistent angular relationship with the chain we call it yaw technology and it eliminates the need for shifter trim as a result shifts feel more direct more precise and combined with the new sram red crankset and chainrings delivers an unmatched