Specialized Roval Right Front Endcap For Aero Disc Thru Axle Hub. DT Swiss manufacturer part number is (Afd01-F) Hwaxxx00s6513c0. OEM replacement part on the following bikes: Allez Creo SL Fusee Roubaix Roubaix SL4 Shiv Tarmac SL6 Venge Ruby OEM replacement part on the following wheels: Rapide CL 50 Disc Rapide CL 40 Disc Rapide CLX 32 Disc Rapide CLX 32 Disc (Tubular) Rapide CLX 50 Disc Rapide CLX 64 Disc Rapide CLX Rapide CLX (Tubeless) Terra CLX Boost Terra CLX Terra CLX EVO Alpinist CLX