The Specialized Roval Left Front End Cap is a replacement for the Roval 100 x 12mm Front Thru Axle Endcap for Aero Disc Hubs (Afd01-F). Specifications: Specialized Part #: S165900002 Hub Part #: Afd01-F Alt. Part #: Hwaxxx00s6510c0 Color: Black Compatible with the following: 2021 TERRA CLX BOOST Set 2017 RAPIDE CLX 32 DISC Tubular Front 2017 RAPIDE CLX 50 DISC Front 2017 RAPIDE CLX 64 DISC Front 2016 RAPIDE CL 40 DISC Front 2016 RAPIDE CLX 40 DISC Tubular Front 2016 RAPIDE CLX 64 DISC Front 2016 ROUBAIX SL4 DISC POWER SPECIALIZED EDITION 2016 ROUBAIX SL4 DISC POWER SPECIALIZED EDITION CEN 2016 ROUBAIX SL4 PRO DISC RACE UDI2 2016 ROUBAIX SL4 SW DISC DI2 2016 RUBY PRO DISC UDI2 2016 TARMAC DISC POWER SPECIALIZED EDITION 2016 TARMAC EXPERT DISC RACE 2016 TARMAC PRO DISC RACE UDI2 2016 TARMAC SW DISC DI2