
Ningbo Sunrun Industry & Trade Co., Ltd. manufactures bicycle and e-bike transmission and braking components, offering a wide product range backed by in-house R&D, testing, and precision processes.
Ningbo Sunrun Industry & Trade Co., Ltd. is a specialized manufacturer of bicycle transmission parts, producing a broad portfolio that covers derailleur systems, freewheels, chainwheel and crank sets, brake sets, hubs, bottom brackets, and related accessories. The company also develops components for electric bicycles, including controllers, motors, mid-drive motors, instrument panels, and torque sensor kits.
With a strong focus on product development, the company supports OEM/ODM projects and can develop and manufacture to customer drawings or samples. Manufacturing capabilities highlighted include high-precision cold-forging, numerical control (CNC) processing, and heat treatment, supported by in-house laboratory and testing equipment for quality assurance.
The SUNRUN brand is recognized in both domestic and international markets, with products sold across Europe, Central & South America, and Southeast Asia. Large-scale production capacity supports stable supply for a wide range of purchasing volumes.
Backed by a dedicated R&D capability, the company can develop and manufacture products based on customer drawings or samples to support tailored bicycle and e-bike drivetrain solutions.
Quality management is supported by an internal laboratory and testing equipment, helping ensure consistent performance and reliability across product lines.
The company operates with its own processing facilities and has two in-house OEM factories to support direct manufacturing and cost-efficient supply.
The company positions quality as a core priority, combining process control and testing to support dependable performance in demanding riding conditions.
Send an enquiry to learn more about their capabilities and request custom quotes.