Brake discs, as well as brake pads, are expendable. However, the service life of the brake disc is longer than the pad, and it is worth more appreciably.
There are several problems that can be solved by the brake disc system:
1. Following the replacement of one or two pairs of brake pads on the brake disc, a brothel appears. This is located on the outer perimeter of the brake disc. After the installation of the new pad, the board will prevent and squeeze the brake pad so that braking performance will be greatly reduced and the new pads are blurred unevenly.
2. A brake disc may be deformed by a temperature change if it is followed by heavy braking. The deformation is subject to both the appearance of the species and the new brake disc.
3. The brake disc may be damaged by poor quality wheels. In general, too rigid and foreign-crowding beads leave radial scratches on the brake disc.
Any of these brake disc injuries cause the brake system to decrease.
You can have disks that still have a decent resource. The sports brake discs with grooves and grooves, as well as some very large brake discs, do not prosper.