| 摘要 |
A means to adjust horizontal angle of a pair of handlebars of a bike; stem and fork of the bike being connected through a sleeve; a shaft holder being provided at top of the fork; a shaft being forthwith inserted to the top of the shaft holder; a sleeve inserted into the shaft being provided at the tail of the stem; the stem and the fork being pivoted to each other through the insertion of the sleeve into the shaft; a protrusion being provided on the lower edge of the sleeve; and multiple recesses being provided on a flange at the top of the shaft holder to secure the binding for assuring of precise adjustment. |
