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Founded in 1991, Ningbo Sunrun Bicycle Co., ltd & Its branch company Ningbo Tongkin Technology Co., Ltd.

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Bicycle Disc Brake Factory
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Bicycle Disc BrakeBicycle Disc Brake

Bicycle Disc Brake Manufacturer

A bicycle disc brake is a braking device that applies the brakes by means of a clamp (or caliper) acting on a steel disc fixed to the hub. The main difference between disc brakes and "V" brakes is the braking principle and setup.
Disc brakes can be divided into two types: cable-pull disc brakes (mechanical) and hydraulic disc brakes. Cable-pull disc brakes rely on the tension of the brake cable to make the brake pads (rims) in the caliper rub and clamp the disc to produce a braking effect. Hydraulic disc brakes use oil as the medium, through the force on the brake handle to act on the piston inside to compress the oil, the pressure from the oil pipe through the caliper, thus pushing the piston inside the caliper, driving the brake pads to clamp the disc.
Compared with the "V" brake, the critical point for holding the brake is looser, which can better control the speed of the car, and the braking force is more linear. In addition, disc brakes are higher from the ground, which greatly reduces the possibility of external influences, and can still maintain excellent braking performance in rainy days. In addition, the rim weight of vehicles with disc brakes is lighter than that of vehicles with "V" brakes, which greatly reduces the overall weight of the vehicle.
Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Tongkin Technology Co., Ltd. is a China Bicycle Disc Brake Manufacturer and Bicycle Disc Brake Factory, was founded in 1991, specializing in the production of bicycle transmission systems, braking systems and other components. The leading products include a series of derailleurs, variable speed flywheels, high-end cassette hubs, disc brakes, brake components, cranksets and more than 300 varieties in six categories.

In 2015, in response to Made in China 2025, the company established Ningbo Dongjin Technology Co., Ltd. to develop a new internal and external variable speed transmission system, entering the first echelon of the domestic industry. "Chicheng wheel industry, quality first" is the pursuit of quality by Richeng people. The company has introduced internationally advanced key technologies such as precision cold forging, CNC machining, heat treatment, and multi-station stamping to develop transmissions with Richeng characteristics. , transmission kit, sales volume leads domestic peers. The registered brands SUNRUN, TONGKEEN and HEMU enjoy high reputation in domestic and foreign markets. The company has independent export rights, and its products are exported to Europe, North America, Central and South America, Africa, Southeast Asia and other countries and regions. Xu Mingqiang, chairman of the company, sincerely invites domestic and foreign merchants to come for negotiation and guidance.

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Bicycle Disc Brake Industry knowledge

After replacing the Bicycle Disc Brake brake pads, how should I adjust the brake system and perform a brake test?

After replacing the Bicycle Disc Brake pads, it is very important to adjust the brake system and perform a brake test to ensure optimal braking performance and riding safety. Here are the detailed steps:
Adjust brake system
Loosen the bolts on the back: First, you need to loosen the bolts on the back of the brake caliper in order to realign the brakes.
Realign and secure the brake: Then, move the brake caliper slightly to ensure that it is positioned parallel and centered with the brake rotor. Retighten the back bolts to ensure the brake caliper is securely seated.
Check the distance between the brake pad and the rim: Use one hand to hold the brake caliper and adjust the cable bolt slightly to check the distance between the brake pad and the rim. Make sure this distance is neither too close nor too far for a comfortable braking feel.
Adjust the brake pad position: The brake pad should be placed in the center of the braking surface, and should not be in contact with the sidewall of the tire, nor should it be lower than the braking surface. Turn the wheel slightly to check that the brake pads are fully aligned with the brake track.
Fine-tune the cable tension: If you feel like the braking force isn't right, you can fine-tune the cable tension by adjusting the threaded adjuster on the brake line. Turn the threaded adjuster clockwise to increase braking force and counterclockwise to decrease it.
Perform a brake test
Test in a safe environment: Find a safe and open place, such as a bike path or parking lot, to ensure the testing process does not interfere with other people or objects.
Low-speed test: First, ride at a low speed and try to brake to observe the response of the braking system and the braking distance. Make sure the brakes are smooth and powerful, with no noticeable shaking or squeaking.
Gradual acceleration test: As confidence in the braking system increases, you can gradually increase the riding speed and perform a brake test. At each speed, pay attention to the feel and distance of braking to make sure they are within safe limits.
Multiple tests: In order to obtain more accurate test results, it is recommended to conduct multiple tests and make fine adjustments as needed after each test.
Throughout the process, if you feel unsure or encounter problems, it is recommended to seek help from a professional bicycle mechanic. They have the experience and expertise to ensure your brake systems are properly adjusted and maintained.
In addition, it is also very important to regularly check the condition of the brake system and brake pads. If you find that the brake pads are severely worn, the brake system has abnormal noise or is unstable, etc., it should be repaired or replaced in time.