The Sram Red eTap AXS™ front derailleur leverages our advancements with X-Range™ gearing. The derailleur design carves out space for wide rear-tire clearance, making it a perfect fit for modern riding. And the shifting is quick and precise. Features AXS™ enabled for easy personalization.. Elegant and streamlined form for more rear-tire clearance.. SRAM Yaw™ trimless cage technology with an optimized cage profile for new SRAM RED® front chainring combinations.. The most responsive, quick, and precise front shifting to date.. Compatible with existing eTap® batteries.. Battery sold separately.. Specification Speed (FD): 2x12. Chainring Compatibility (FD): Road-Yaw. Mounting type (FD): Braze-on. Cable routing: Wireless. Chainstay Angle: 61-66 degrees. Clamp size (FD): 31.8m/34.9mm.