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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 Bicycle Hub
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Bicycle Hub
M03S, M04S GOLD

Bicycle Hub

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Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM Bicycle Hub Supplier and ODM Bicycle Hub 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 the differences in durability between Bicycle Hubs made of different materials?

Bicycle Hubs made of different materials do have significant differences in durability. Durability is one of the important indicators for evaluating Hub performance, and the choice of material is directly related to the Hub's service life and riding experience. The following will explore the impact of several common materials on the durability of Bicycle Hub.
First of all, the Bicycle Hub made of steel has high strength and durability. As a traditional metal material, steel has good load-bearing capacity and impact resistance. However, the disadvantage of steel is that it is heavier and prone to rust, especially in humid environments, which may lead to reduced performance and damaged appearance of the Hub. Therefore, the steel hub requires regular cleaning and maintenance to prevent rust and extend its service life.
In comparison, the aluminum alloy Bicycle Hub is lighter in weight and has better corrosion resistance. Aluminum alloy is a lightweight metal that not only reduces the overall weight of the bike, but also improves riding flexibility. At the same time, aluminum alloy has good oxidation resistance, is not easy to rust, and can maintain good appearance and performance under various environmental conditions. Therefore, aluminum alloy hubs are usually more popular among cyclists, especially those who pursue lightweight and durability.
The carbon fiber Bicycle Hub is a high-performance option that has emerged in recent years. Carbon fiber is extremely strong and rigid while being extremely lightweight, making the Carbon Fiber Hub a popular product in the high-end bicycle market. Carbon fiber is also extremely durable, able to withstand the wear and impact of long rides and harsh environments. However, the price of carbon fiber Hub is relatively high and is generally suitable for professional cyclists or cycling enthusiasts who pursue ultimate performance.
In addition, some emerging materials such as titanium alloys and ceramics are gradually used in the manufacture of Bicycle Hubs. These materials generally have higher strength and corrosion resistance, but also increase in cost and processing difficulty.
Therefore, there are obvious differences in the durability of Bicycle Hubs made of different materials. Steel Hub has high strength and durability but is heavy and prone to rust; aluminum alloy Hub is lightweight and corrosion-resistant; carbon fiber Hub has excellent strength and rigidity but is more expensive. Riders can choose the right material based on their needs and budget for the best durability and riding experience.