| 摘要 |
A bicycle hub brake component is provided for braking a hub (6a) of a wheel mounted on a bicycle frame (1). The component comprises a brake drum (40) adapted to rotate integrally with the hub (6a), and a brake shoe (41). The brake drum (40) has a brake face (51a) on an inner peripheral surface thereof, and the brake shoe (41) has a contact surface (41a) that contacts the brake face (51a) of the brake drum (40) to apply a braking force to the brake drum (40). A grease groove (54) is formed in the brake face (51a) of the brake drum (40), wherein the grease groove (54) is aligned between side edges of the contact surface (41a) of the brake shoe (41). <IMAGE>
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