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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 Shifter Transmission Group Set Series
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Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM Shifter Transmission Group Set Series Supplier and ODM Shifter Transmission Group Set Series 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 types of vehicles are the Shifter Transmission Group Set Series suitable for?

Transmission shift sets from Shifter Transmission Group Set Series are typically suitable for a variety of vehicle types, depending on their design and performance parameters. Here are some vehicle types that may apply:
Passenger cars: including sedans, SUVs (sports utility vehicles) and MPVs (multipurpose vehicles), etc. Such vehicles often require smooth and precise shifting performance to meet the needs of daily driving and urban commuting.
Commercial vehicles: such as vans, light trucks and buses. Commercial vehicles usually need to operate under heavy or high-load conditions, so the transmission shift group needs to have higher durability and load-bearing capacity.
Industrial vehicles: including forklifts, excavators, loaders and other construction machinery and agricultural machinery. The working environment of these vehicles is usually harsh and has high requirements on the reliability and durability of the transmission shift group.
Sports vehicles: such as sports cars, racing cars and off-road vehicles. Such vehicles typically require higher shift speeds and more precise shift control to provide a better driving experience and performance.
It should be noted that specific applicability depends on the specific model, specifications and performance characteristics of the Shifter Transmission Group Set Series. Therefore, when selecting a transmission shift set, it is recommended to consult the relevant product description, technical specifications and applicable vehicle list to ensure that the selected transmission shift set matches the vehicle type, purpose and performance requirements. In addition, consulting with a professional auto parts supplier or manufacturer is also an important step to ensure the right choice.