How to replace the bicycle mechanical disc brake (cable disc) to make the film

First, you need to buy a new Lai Ling film. The specifications can be measured according to the brand and model of the disc brake, or by directly removing the old disc. Next, remove the disc brake caliper.

Use an Allen wrench to unscrew the screw that fixes the clamp and remove the clamp. Then remove the incoming film from the clamp.

There is a short handle on the top of the lamella, through the handle, the lamella is sent out from the card slot, and then withdraw from the clamp.

Take the two outer pads first, that is, the pad that can be moved by squeezing the brake, and the other pad is fixed for internal testing. If you take the internal test piece first, you will find that the gap in the clamp is not big enough to be taken out.
Finally, install the new piece and fix the clamp again.

When installing the receptacle, first install the internal test receptacle, and then install the outer receptacle.

Comparing the new and old film, you can see that the surface of the old film is very smooth, and it looks a bit oily, there are black marks on the disc brake, and the new film makes the surface rougher.

When installing the clamp, adjust the position of the clamp to avoid rubbing the disc.

If the film is not worn out and has a large thickness due to the new arrival, the gap between the two films is small and it is very easy to rub the disc. At this time, it is necessary to relax the disc brake cable so that the outside movement makes the film move outward, increasing Two to make the gap in the middle of the film to avoid rubbing the disc. However, the gap should not be too large, so that the braking stroke is too long and the braking is not timely.