Specialized Roval Aero Road Disc Hub Thru-Axle End Cap Description: This Specialized Roval Aero Road Disc Hub Thru-Axle End Cap replaces worn, broken, or missing end caps found on select Roval rear wheels built with DT Swiss 240 or 350 hub internals. Features: Genuine Specialized replacement parts Non-drive side end cap for Roval Aero Flange rear wheels Compatible with hubs featuring DT Swiss 240/350 hubs Specifications: Color: Black Material: Alloy