market dynamics
How often do you change the brake disc on a motorcycle?
Release date:2021.03.18

The braking principle of the disc brake

When the rider brakes, he pulls down the brake handle, and the fluid in the brake pump creates pressure. The fluid passes the pressure through a pipe to a piston in the caliper of each wheel. The piston then drives the caliper to clamp the brake pads and brake discs, creating friction that slows the bike down.

Therefore, the brake pads in the brake calipers clamp the circular brake disc to realize the tire braking. The brake disc and the brake disc are not replaced for a long time, which will produce greater wear and lead to the worse braking effect of the motorcycle. Therefore, it is important to master the relevant knowledge of the brake disc.

What is a brake disc

The brake disc, simply, is a round plate that also turns as the motorcycle moves. Brake caliper clamps the brake disc and produces braking force. When holding the brake, the brake block clamps the brake disc to slow down or stop the car. Brake discs brake well, but are more prone to wear than drum brakes.


Replacement mileage of brake disc

Generally speaking, the brake block (that is, the two pieces of brake calipers) needs to be replaced about 20, 30 thousand kilometers, and the replacement mileage of the brake disc is generally about 40, 50 thousand kilometers. Of course, the replacement of mileage is not completely absolute, is the owner's own driving habits (whether to like the brakes), road conditions, maintenance cycle and other factors to determine.

When should the brake disc be replaced

1. In addition to the driving mileage mentioned above, if the brake block is seriously worn, it will also continue to be used, resulting in the friction between the iron block of the brake block and the brake disc. The brake disc will soon grind out a deep groove, which needs to be replaced immediately.

2. Although the brake block has not been worn to the brake disc, due to long-term use, there is a deep groove on the brake disc. When the thickness of the deep groove on both sides adds up to more than 3mm, the brake disc needs to be replaced.

3. Some brake disc although the surface is smooth, but has been ground too thin, coupled with the brake pump rust, brake block is excessive wear, this is not only to replace the brake disc, but also to maintain the brake pump.

Daily maintenance method of brake disc

Motorcycle ride long distance, the brake disc in the braking situation will produce a lot of heat, so in the motorcycle ride long distance do not immediately wash the car, should be flaming to reduce the surface temperature of the brake disc, to prevent the high temperature of the brake disc because of contact with cold water thermal expansion and contraction deformation. It is also necessary to prevent the stone from hitting the brake disc and causing deformation. After locking the wheel ring, forgetting to unlock the vehicle to start, it is also easy to cause the deformation of the brake disc. When the brake disc is deformed, it will produce friction sound in a single direction.

In addition, the best way to improve the life of the brake disc is to maintain good driving habits, as far as possible to avoid sudden brake sudden stop. On the brake disc to clean up the silt, often check whether the brake block wear and brake disc iron iron.