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