The SRAM Rival eTap AXS Wide Front Derailleur is optimized for smaller X-Range chainrings on wide cranks and uses Yaw technology so theres 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 reliability-For wide cranksets with 43/30 chainrings-Additional clearance for 700x45c and 27.5x2.1 tires-Crisp and accurate front shifts-AXS enabled for easy personalization