We know that brakes are currently divided into oil brakes and line brakes. Among them, the wire brake mainly uses steel cables to stretch the brake pads and compress the rim or discs for friction to achieve the effect of deceleration or parking.
Therefore, the wire brake has a spring structure on the brake caliper, and the brake wire is always loose before braking. This is because there is a certain gap between the rim or the disc and the leading film. To ensure normal riding. As the brake model touches the rim or disc, the brake cable will also be compressed. As long as the adjustment is correct, the brake shoe should be completely pressed on the brake surface before the brake lever touches the handlebar.
As the brake pads wear out, the stroke of the brake handle also becomes longer. Once the brake handle needs to be close to the handle to achieve a tight brake, or the braking effect is not great, then it needs to be adjusted or the brake cable needs to be replaced. And also pay attention to adjust the position of the brake block to avoid incorrect position of the brake block and cause other wear.