| 摘要 |
<p>A headset for rotatably attaching a fork stem to a head pipe (3) of a frame of a bicycle or the like. The headset includes an inner tube (16) fitted on an outer surface of the fork stem, an outer tube (15) coaxially surrounding the inner tube and fitted in an inner surface of the head pipe, and a ball bearing (60) mounted between the inner tube and outer tube for allowing relative rotation about an axis thereof and restricting relative axial movement between the inner tube and the outer tube. The inner tube, outer tube and ball bearing are assembled into an integral unit attachable to and detachable from the head pipe and fork stem. <IMAGE></p> |
