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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 9S 13-32T MTB Bicycle Index Freewheel
Home / Products / Multiple Freewheel / 9S 13-32T MTB Bicycle Index Freewheel
9S 13-32T MTB Bicycle Index Freewheel
FW-M932

9S 13-32T MTB Bicycle Index Freewheel

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Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM 9S 13-32T MTB Bicycle Index Freewheel Supplier and ODM 9S 13-32T MTB Bicycle Index 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 impact does chain wear have on the MTB Bicycle Index Freewheel? How to tell if the chain needs to be replaced?

Chain wear has a significant impact on the MTB Bicycle Index Freewheel. First of all, the worn chain may not be tightly engaged with the flywheel, resulting in reduced power transmission efficiency during riding, or even chain slippage, which will not only affect the riding experience, but may also pose safety risks. Secondly, a severely worn chain may deform or stretch, causing problems with the fit with the flywheel, further aggravating the wear on the flywheel and shortening the service life of the flywheel.
To determine whether the chain needs to be replaced, you can refer to the following methods:
Visual inspection: Observe the appearance of the chain. If the chain shows obvious elongation, deformation, or excessive gaps between links, it may be a sign that it needs to be replaced. At the same time, if there is severe rust or wear on the surface of the chain, it also indicates that the performance of the chain has declined.
Tool Measurement: Use a professional chain measurement tool, such as a chain caliper, to check chain elongation. Generally speaking, if the chain stretches beyond the manufacturer's recommended range, then you should consider replacing the chain.
Riding experience: During riding, if you feel that the engagement between the chain and the flywheel is not smooth, or you hear abnormal friction sounds, this may also be a sign of chain wear, and you need to check it in time and consider replacing it.
It should be noted that the degree of chain wear is closely related to factors such as the riding environment, riding frequency, and maintenance conditions. Therefore, in order to keep the chain and flywheel in good condition, it is recommended to clean and lubricate the chain regularly, avoid riding in bad road conditions, and replace severely worn chains in a timely manner. This not only improves riding comfort and safety, but also extends the life of the flywheel.