Compatible with SRAM Rival AXS & XPLR AXS drivetrains. Fully wireless SRAM AXS electronic shifting. Shifting: Electronic wireless (AXS / eTap logic). Drivetrain: 1x13 AXS. SRAM Rival XPLR DUB Wide Crankset 1x13 Gravel Direct Mount - 170mm / 40 Tooth.