Zipp 303 XPLR SW WheelAttributes Axle Type 12mm TA Depth 54mm Hub Model ZR1 Disc Rim Color Black Rim Construction Double wall Rim Drilling 24 Rim External Width 40mm Rim inner width range 28 34. 9mm Rim Internal Width 32mm Rim Material Carbon Rim Model 303 XPLR SW A1 Skewers Included No Spoke Type Sapim CX Ray Valve Presta Wheel Diameter ISO 700C 622 Wheel Tire Type Tubeless Ready Wheel Brake Comp. Disc Center Lock