Bicycle wheel hub with disk brake

摘要

A bicycle disc brake hub (12) is provided with a brake rotor attachment portion (34) having an external surface with an external spline section (34c) and an annular internal surface with internal threads (34d), and a locking ring (29) having a center tubular section (29d) with external threads (29e) and an abutment flange (29c) extending outwardly from the center tubular section (29d) to form an axially facing retaining surface. The external threads (29e) of the center tubular section (29d) mate with the internal threads (34d) of the brake rotor attachment portion (34) to secure a rotor mounting boss (28) and a brake rotor (23) thereto. In one embodiment, the brake rotor (23) is held between the locking ring (29) and the rotor mounting boss (28), while in another embodiment, the brake rotor (23) is riveted to the rotor mounting boss (28).