| 摘要 |
A bicycle hub assembly includes two end caps which are two collar-shaped member and an axle is connected between the two end caps. A casing is mounted to two respective outer peripheries of the two end caps and accommodates the axle therein. The two end caps and the casing form a smooth and curved outer shape. Two collars are connected to two distal ends of the two end caps and two ends of the casing. Two positioning bolts extend through the collars and are threadedly connected to the two ends of the axle. Multiple copper heads are connected to the two end caps and protrude outward from the casing at an angle so as to be connected to spokes.
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