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

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OEM/ODM 3x7S Bicycle Trigger Shifter With Brake Lever
Home / Products / Trigger Shifter / 3x7S Bicycle Trigger Shifter With Brake Lever
Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM 3x7S Bicycle Trigger Shifter With Brake Lever Supplier and ODM 3x7S Bicycle Trigger Shifter With Brake Lever company 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.


Industry Knowledge Extension

How to perform daily maintenance on the Bicycle Trigger Shifter With Brake Lever to prevent malfunctions?

In order to prevent the Bicycle Trigger Shifter With Brake Lever from malfunctioning, routine maintenance is crucial. Here are some key steps and suggestions to help you with daily maintenance:
1. Regular cleaning
Use a mild detergent and a soft cloth to clean the shifter and brake lever to remove oil and dust.
Take care to clean the derailleur paddles and chain to ensure there are no impurities between them to maintain smooth shifting and braking performance.
2. Lubrication and maintenance
Apply an appropriate amount of bicycle-specific lubricant to the derailleur and chain to reduce friction and wear.
Check and lubricate brake and shift cables to ensure they are not rusted or broken and maintain flexibility and durability.
3. Check brake pads and discs
Regularly check the wear of the brake pads. If the wear is serious, replace it in time.
Check the surface of the brake disc for scratches or unevenness and clean or repair it if necessary.
4. Adjust braking force
Make sure the braking force is moderate to ensure safe braking without being too tight and causing poor feel.
According to personal habits and riding needs, appropriately adjust the stroke and strength of the brake handle.
5. Check and tighten the mounting screws
Regularly check the thumb shifter and brake lever mounting screws to make sure they are not loose or missing.
Use appropriate tools to tighten screws to avoid problems caused by over-tightening or over-loosening.
6. Fair use and protection
During use, avoid excessive force or improper operation to avoid damage to the shifter and brake handle.
When riding in bad weather or environments, pay attention to protecting the bicycle from rain, sediment and other pollutants.
7. Regular inspection and replacement of accessories
Regularly check the accessories of the transmission and brake system, such as transmission cables, brake cables, springs, etc. If they are worn or aged, replace them in time.
Replace wearing parts regularly according to the bicycle manufacturer's recommendations to ensure system performance and safety.
By following the above daily maintenance steps and recommendations, you can effectively prevent your Bicycle Trigger Shifter With Brake Lever from malfunctioning, extend its service life, and ensure a safe and comfortable ride. Remember to perform regular inspections and maintenance to identify and resolve problems promptly to keep your bike in top condition.