(1) Insufficient tire pressure will increase the friction between the tire and the road surface, thus shortening the mileage. It will also reduce the flexibility of the handlebar and affect the ride comfort and safety. When the air pressure is insufficient, the air pressure should be replenished in time. The tire air pressure should be in accordance with the recommended air pressure in the "Electric Bicycle Instruction Manual" or the specified air pressure on the surface of the tire.
(2) When the handlebar is inflexible, if it is stuck, stiff or tight, it should be lubricated or adjusted in time. Lubricating generally uses butter, calcium-based or lithium-based grease; when adjusting, first loosen the front fork lock nut, rotate the front fork upper block, when the handlebar rotation flexibility meets the requirements, lock the front fork lock nut.
(3) The flexibility of the front and rear wheels is not good, which will increase the rotational friction and increase the power consumption, thus reducing the mileage. Therefore, in the event of failure, lubrication and maintenance should be timely. Lubrication generally uses butter, calcium-based or lithium-based grease. If it is a shaft failure, the steel ball or shaft can be replaced. If it is a motor failure, it should be repaired by a professional maintenance unit.