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Founded in 1991, Ningbo Sunrun Bicycle Co., ltd & Its branch company Ningbo Tongkin Technology Co., Ltd.

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1x12 Speed Shifter transmission group set

1x12S-A

1x12 Speed Shifter transmission group set

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Describe
Parameter

Describe

Nissin SUNRUN 1x12 speed shifting transmission kit includes 12-speed finger dial controller, 12-speed rear derailleur, 12-speed cassette flywheel, four-piston hydraulic disc brake assembly, single-disc aluminium alloy hollow-shaft crankset, and quick-release cartridge axle hubs. It has good shifting performance, high efficiency power transmission, stable handling performance, long life and reliability, and lightweight design.

Ningbo Tongkin Technology Co., Ltd.

About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM 1x12 Speed Shifter transmission group set Supplier and ODM 1x12 Speed Shifter transmission group set 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 News 2025-04-03

How does the Rear Derailleur receive the chain from the front derailleur and connect it to the rear wheel for power transmission and shifting?
The basic structure of the Rear Derailleur is mainly composed of an upper guide wheel, a lower guide wheel and a cage-type bracket. The upper guide wheel has a sliding gap, which p...
Industry News 2025-03-28

Compared with aluminum alloy sprockets, what are the advantages of the steel part of the 8S MTB Bicycle Cassette Sprocket?
The steel sprocket of the 8S MTB Bicycle Cassette Sprocket is made of high-strength steel, and its tensile strength and yield strength are significantly higher than those of alumin...
Industry News 2025-03-21

How does the Rear Derailleur coordinate the chain with the front derailleur system to achieve power transmission and speed change operation?
The guide wheel system of the Rear Derailleur consists of two upper and lower guide wheels, which are designed to dynamically adjust the chain path. The upper guide wheel is locate...

Industry Knowledge Extension

What are the performance features and advantages of Speed Shifter Transmission Group Set in terms of noise and vibration control of transmissions?

Speed Shifter Transmission Group Set shows significant performance features and advantages in noise and vibration control of transmissions.
Performance features:
Precision design: This transmission set adopts precise gear design and advanced manufacturing technology to ensure more precise and smooth meshing between gears, effectively reducing noise and vibration caused by gear friction and impact.
Balance optimization: Key components inside the transmission, such as shafts, gears and bearings, have been rigorously balanced tested and optimized to reduce centrifugal force during operation, thereby further reducing vibration levels.
Damping material application: Damping materials are used in key parts of the transmission. These materials have good vibration absorption and sound insulation properties and can effectively absorb and reduce the transmission of vibration and noise.
Optimize lubrication system: Lubricating oil flow and distribution are critical to transmission noise and vibration control. Speed Shifter Transmission Group Set adopts an optimized lubrication system to ensure that the lubricating oil can evenly and fully lubricate various components, reducing noise and vibration caused by friction.
Advantage:
Excellent silent performance: Due to the multiple noise reduction measures mentioned above, the Speed Shifter Transmission Group Set produces extremely low noise during operation, providing a quieter driving environment for drivers and passengers.
Smooth driving experience: Excellent vibration control makes the transmission more stable during shifting and acceleration, reducing discomfort caused by vibration and improving driving comfort and stability.
Improve vehicle quality: Effective control of noise and vibration is one of the important factors in improving the overall vehicle quality. The excellent performance of Speed Shifter Transmission Group Set helps to improve the overall quality and market competitiveness of the vehicle.
Therefore, the Speed Shifter Transmission Group Set has significant performance features and advantages in terms of transmission noise and vibration control, providing drivers and passengers with a more comfortable and quiet driving experience.