SRAM Rival eTap AXS Wide Front Derailleur - 2x12-Speed Braze-on Black D1. The SRAM Rival eTap AXS Wide Front Derailleur is optimized for smaller X-Range chainrings on wide cranks and uses Yaw technology so there’s no need for trim. Its wider position on the bike also provides clearance for extra wide tires so you can venture far beyond the beaten path. The derailleur is also AXS enabled for easy personalization.Wireless electronic eTap shift logic for intuitive shifting easy setup and reliabilityFor wide cranksets with 43/30 chainringsAdditional clearance for 700x45c and 27.5x2.1” tiresCrisp and accurate front shiftsAXS™ enabled for easy personalization