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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 MTB Bike Single Chainwheel & Crank Set
Home / Products / Chainwheel & Crank Set / MTB Bike Single Chainwheel & Crank Set
MTB Bike Single Chainwheel & Crank Set
WING-5011-G1

MTB Bike Single Chainwheel & Crank Set

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Ningbo Tongkin Technology Co., Ltd.
About SunRun

Ningbo Dongjin Technology Co., Ltd is China OEM MTB Bike Single Chainwheel & Crank Set Supplier and ODM MTB Bike Single Chainwheel & Crank 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 Knowledge Extension

How to check the installation status of MTB Bike Single Chainwheel & Crank Set after the installation is completed?

After installation is complete, a series of inspections are required to ensure the correct installation and safety of the MTB bicycle single-speed sprocket & crankset. Here are some key inspection steps:
Check bolt tightening:
Use a wrench or screwdriver to gently check the tightness of the crank bolt and other related bolts. Make sure they are tightened securely and not loose.
Be careful not to over-tighten to avoid damaging the threads or causing damage to other components.
Check the installation position of sprocket and crank:
Observe whether the installation position of the sprocket and crank is correct and aligned with the marks on the frame.
Check whether the sprocket is installed firmly and there is no shaking or deviation.
Check chain installation and tension:
Observe whether the chain passes through the sprocket correctly and whether the two ends are firmly connected.
Check that the chain tension is appropriate, neither too tight nor too loose. A chain that is too tight may cause it to wear out too quickly, while a chain that is too loose may cause the chain to fall off or skip.
Check the fit of chain and sprocket:
Turn the crank slightly and watch the chain run on the sprockets. The chain should slide smoothly on the sprockets without any squeaking or sticking.
Pay special attention to the meshing of the chain and sprocket teeth to ensure they fit correctly and there are no misalignments or skipped teeth.
Check crank and sprocket rotation:
Hold the crank and rotate it firmly to check whether the crank and sprocket rotate smoothly without any resistance or friction.
Pay attention to check whether there is any shaking or deflection of the crank during rotation.
Conduct a short test ride inspection:
Carry out a short test ride in a safe area to observe how the sprocket and crank perform in actual riding.
Pay attention to check whether there is any abnormal noise, friction, shaking or other abnormal conditions.
If any abnormalities or problems are found during the inspection, adjustments or repairs should be made in time. If you are not sure how to repair it, it is recommended to consult a professional technician or go to a professional bicycle shop for inspection.
Please note that proper installation and adjustment are critical to ensuring riding safety and performance. Therefore, be sure to double-check and confirm that each component is installed correctly and is in good condition.