All our cassette bodies are now equipped with the proven steel face on the splines, so that the body will not be damaged by the cassette. Each steel insert is securely dovetailed in place by hand with Bills specially designed insert tooling. Steel is harder than aluminum, which protects the softer aluminum from being gouged by the cassette.;11 speed.;Freehub body 17mm.

• American Classic Freehub Body - Shimano - 11sp , 17mm

American Classic Freehub Body - Shimano - 11sp , 17mmMoore Large & Co Ltd