| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems in a conventional frame conformable to only a cantilever type to which a disc mount for mounting a disc brake is newly welded or fastened by a screw, that a sufficient strength might not be provided in the disc mount although the disc brake capable of providing a strong braking force requires the design of the disc mount considering the braking force for safe stoppage because the disc mount receives the strong braking force, and the post-mounted disc mount cannot provide a mounting precision to the disc rotor of a wheel in the mounting of the disc brake because it cannot be often precisely fastened or welded to a body, so that a designed braking force cannot be exhibited. SOLUTION: In this bicycle performing a braking by use of the disc brake, a mount part for mounting a disc brake caliper by use of at least two fastening parts and a wheel shaft support member for supporting the shaft of the wheel are formed of the same structure.
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