26inch 7 speed fat tire electric bike with middle drive motor

1. Check the tightness of the chain before the electric bicycle is used. The chain is too tight when riding on the ankle. If it is too loose, it will easily vibrate and rub against other parts. The sag of the chain is 1-2mm, which is suitable, and can be properly adjusted when riding without the ankle. When the chain is adjusted, first loosen the rear wheel nut, and then screw out the left and right chain adjustment screws evenly to adjust the chain tightness and retighten the rear wheel nut.
2. The lubrication of the chain should be checked before using the electric bicycle. Feel and observe whether the chain chain of the chain is flexible or not, and whether the chain rust is serious. If the corrosion or rotation is not flexible, the right amount of lubricant should be added, and the chain should be replaced seriously.

Ruian motor company is a new energy company dedicated to production, R&D and sales. The current products include electric scooter, electric bike, lithium battery. There are 3 production bases in china.
Products are exported to the United States, Canada, Switzerland, Spain, Germany and other developed countries.

Our company has a strong after-sales system and technical team, and can make the most effective and effective solutions for the customers. Has won the recognition of our customers.

Our company is customer-oriented, based on product quality, with "to be perfect in electric world" as the center, and continues to grow and develop.

After years of development and precipitation, our products have become the best choice for customers after testing by different customers.