Because factors that affect the top speed include battery power, load, tire pressure, road environment, chain and axle lubrication, etc., the cruising range shown in the product description is on a flat hardened road, with a load of 60kg, a speed of 15-25km/h, and a fully charged battery The results of the non-stop riding test. Driving habits, temperature, load, tire pressure, road environment and other factors will affect the actual cruising range.