| 摘要 |
An improved structure of a brake-tuning device for a bicycle, and in particular, relates to a tuning device for the brake of a bicycle by having an adjusting bolt to regulate the distance between the brake arm and the wheel frame so that the braking operation is effective. The brake-tuning device comprises a brake arm, a holding seat urging the lateral edge of the brake arm, an adjusting bolt being mounted onto the holding seat, an adjusting rim mounted on the holding seat, a cable having one end mounted to the brake arm and the other end mounted to the holding seat, and an annular insert mounted on the fork of the bicycle and being used to secure the brake-tuning device thereto.
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