DescriptionDT Swiss 350/XM421 Front Wheel – 29″ 15 x 110mm Center Lock Black. The 350/XM421 front wheel features a DT350 straight pull front boost Center-Lock disc hub built with Champion spokes to a 28 hole 29″ DT XM421 rim. TECH SPECSColorBlackDefined ColorBlackFront Axle15mm Thru x 110mmHub/Brake CompatibilityCenter-Lock DiscISO Diameter622 / Road / 29″Rim MaterialAlloyRim Width (Internal)25Tire TypeTubeless Ready ClincherValvePrestaWheel Size29″