| 摘要 |
A bicycle rim is provided that can be manufactured easily while being made lightweight, yet strong, expecially in the areas around the spoke holes. This bicycle rim includes an annular tire mounting part to which the tire is mounted and an annular spoke mounting part that includes multiple mounting openings that are formed in and along the inner circumference of the tire mounting part and are disposed at equal intervals. The tire mounting part and spoke mounting part are made of aluminum alloy to which scandium is added. Optionally, zirconium is also added to the aluminum in addition to the scandium.
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