Brake System Parts

Brake Pads & Brake Shoes

The friction material on brake pads and shoes wears and gets thinner with normal braking. The amount that the friction material decreases depends on how much and how hard the rider uses the brakes. If the friction material on the brake pads and brake shoes reach the service limit, the braking performance deteriorates, and if the wear exceeds the limit, the brakes will stop working. Visually inspect the wear condition of the brake pads and brake shoes. Check the remaining amount of friction material on the brake pads from the caliper gap. Check the brake drum indicator scale for the brake shoes.

Brake Hose & Clutch Hose

The hoses for the hydraulic brakes, and clutch on some models, are rubber parts that are very important for protecting safety. If these are used over a long period of time, they harden due to degradation from fatigue and ultraviolet light, and there is a risk that brake fluid will leak. Also, it is difficult to tell whether degradation has occurred on the inside, so even if no external damage or hardening can be seen, these hoses should be replaced every 4 years. The normal brake fluid replacement interval is 2 years, so replace the brake hose every other time the fluid is replaced.

Brake Fluid

Brake fluid transmits the braking force pressure from the lever, or brake pedal, to the brake caliper. In normal operation, a small amount of moisture is always created in the brake system. Brake fluid has properties to absorb this moisture to prevent corrosion of metal parts. This moisture also decreases the boiling point of the brake fluid which reduces the fluids ability to transmit the full brake pressure to the brake pads. For this reason, brake fluid needs to be replaced every 2 years. If you replenish the brake fluid during a routine inspection, don't mix brake fluids that have different DOT ratings.