How to Adjust Disc Brake Tightness?
2 Answers
Methods to adjust disc brake tightness: 1. There is a red plastic disc near the spokes, and turning the plastic disc can adjust the tightness; 2. Adjust the tightness width through the screws on the disc brake caliper; 3. It is recommended that car owners go to a 4S shop or repair shop for adjustment. Disc brakes consist of a brake disc connected to the wheel and a brake caliper at the edge of the disc. When braking, high-pressure brake fluid pushes the brake pads to clamp the brake disc, producing a braking effect. Main advantages of disc brakes: 1. They can brake quickly at high speeds, have better heat dissipation than drum brakes, maintain consistent braking performance, and are easy to install advanced electronic devices like ABS; 2. They use metal blocks instead of drums, with flat brake shoes on both sides of the brake disc. When the brake master cylinder's hydraulic pressure is sent to the wheel cylinder, the brake shoes clamp the brake disc to achieve the braking effect.
Adjusting disc brake tension is actually quite simple, and I often do it myself when riding my mountain bike. First, locate the adjustment screw on the brake caliper, usually on the inside or outside, and use a Phillips or hex key to turn it slowly. Start by loosening the brake cable fixing screw, then squeeze the brake lever to clamp the brake pads onto the disc. After that, pull the cable tight and tighten the screw. Don’t forget to check the brake pad clearance—there should be about a paper’s thickness of space on both sides. If it’s too tight, the disc will rub and wear out the pads faster; if it’s too loose, the brakes won’t work effectively. After adjusting, take a few test rides and lightly apply the brakes on a downhill slope to check the response time. Last time I adjusted mine, I noticed some noise, so I cleaned the disc with an alcohol wipe, which fixed the issue.
