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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 8S MTB Bicycle Index Multiple Freewheel
Home / Products / Multiple Freewheel / 8S MTB Bicycle Index Multiple Freewheel
Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM 8S MTB Bicycle Index Multiple Freewheel Supplier and ODM 8S MTB Bicycle Index Multiple 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

How to clean MTB Bicycle Index Freewheel regularly to remove mud and dust?

Regular cleaning of the MTB Bicycle Index Freewheel is an important step in maintaining your bicycle. It can effectively remove the dirt, dust and oil accumulated on the flywheel and keep it in good working condition. Here are the details on how to clean your MTB Bicycle Index Freewheel regularly.
First, prepare the necessary cleaning tools. Typically, you'll need a soft brush (either a toothbrush or a special bike cleaning brush), a clean rag, bike-specific cleaner, and lubricant. Make sure these tools are clean to avoid introducing new dirt during the cleaning process.
Next, place the bike upside down so that the flywheel is in an easy position for cleaning. This way, you can more easily access the flywheel and perform a thorough cleaning.
Use a soft brush to gently brush away dirt and dust from the flywheel. Be careful to be gentle and avoid using sharp tools or using too much force to avoid scratching the surface of the flywheel. When brushing, you can start from the periphery of the flywheel and gradually move toward the center to ensure that every part is cleaned.
After scrubbing, wipe the surface of the flywheel with a clean rag to remove residual dirt and moisture. If there is stubborn oil stains on the flywheel, you can use a bicycle-specific cleaner to clean it. Spray the cleaner on the flywheel and wipe it with a rag until the oil is completely removed.
After cleaning is complete, inspect the flywheel for rust or damage. If rust is found, use a special rust remover to treat it. If the flywheel is damaged or severely worn, it is recommended to replace it with a new one in time.
Finally, to keep the flywheel running smoothly, it needs to be lubricated. Use special bicycle lubricant and apply it to the ratchet and pawl inside the flywheel. Make sure to apply it evenly and don't overdo it to avoid contaminating the chain and other parts.
In addition to regularly cleaning the flywheel, you also need to pay attention to keeping the chain clean and lubricated. The chain is in direct contact with the flywheel. If the chain is dirty or lacks lubrication, it will cause unnecessary wear on the flywheel. Therefore, regular cleaning and lubrication of the chain are also important steps in maintaining the flywheel.
In summary, regular cleaning of the MTB Bicycle Index Freewheel is key to keeping your bike in good working order. With correct cleaning and maintenance methods, you can extend the life of your flywheel and improve your riding experience. Remember to check the condition of your flywheel after every ride and clean and maintain it as needed.