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

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OEM/ODM 7S MTB Bicycle Index Steel 14-28T Freewheel
Home / Products / Multiple Freewheel / 7S MTB Bicycle Index Steel 14-28T Freewheel
Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM 7S MTB Bicycle Index Steel 14-28T Freewheel Supplier and ODM 7S MTB Bicycle Index Steel 14-28T Freewheel 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.

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Industry Knowledge Extension

What are some ways to extend the life of the MTB Bicycle Index Freewheel?

Extending the service life of the MTB Bicycle Index Freewheel is a goal that every cyclist hopes to achieve. This is not only related to the economy of riding, but also to the safety and comfort experience of riding. Here are some detailed methods that can help you extend the life of your flywheel:
1. Regular cleaning and maintenance
As an important part of the bicycle drive system, the flywheel often rubs against the chain and is easily contaminated with dirt, oil and other impurities. These impurities not only affect the efficiency of the flywheel, but may also increase wear. Therefore, it is crucial to clean the flywheel regularly. Use a soft brush or a special bicycle cleaning tool to gently remove dirt from the surface of the flywheel. Also check and tighten the screws and nuts on the flywheel to make sure they are not loose.
2. Chain maintenance and replacement
The condition of the chain directly affects the service life of the flywheel. A badly worn or deformed chain can cause unnecessary wear on the flywheel. Therefore, it is crucial to keep the chain clean and lubricated. Using a specialized chain cleaner and lubricant to regularly clean and lubricate the chain will ensure that friction between the chain and the flywheel is minimized. At the same time, check the wear of the chain regularly. Once the chain is found to be stretched or the link is severely worn, it should be replaced in time.
3. Cycling habits and skills
The rider's habits and skills also have a significant impact on the life of the flywheel. Avoid riding in bad road conditions and reduce frequent strong acceleration and sudden braking, which can reduce the impact and wear on the flywheel. In addition, maintaining an appropriate riding speed and avoiding overloaded riding can also effectively extend the service life of the flywheel.
4. Storage environment considerations
When storing your bicycle, try to choose a dry, ventilated and dust-free environment. A humid environment can easily cause the flywheel to rust, while dust and impurities may accelerate wear of the flywheel. If you won't be using your bike for a long time, consider applying a layer of anti-rust oil to the flywheel to prevent it from rusting.
In short, through regular cleaning and maintenance, chain maintenance and replacement, paying attention to riding habits and skills, choosing a suitable storage environment, and regular professional inspections, the service life of the MTB Bicycle Index Freewheel can be effectively extended. Cyclists should choose appropriate maintenance methods based on their own riding habits and bicycle usage, and perform them regularly to ensure good performance and long-term use of the flywheel.