The front wheels of the Ezyroller can wear out quickly under certain conditions. The idea is to get into a certain swing that increases speed. Some children push so hard on the pedals that the wheels start scuffing in the turns. The speed does not increase, but the wear and tear does. Quiet movements with pressure at the right time gives little or no wear but the same speed. Excessive hard pushing and too abrupt movements on the pedals combined with a very rough surface can cause the front wheel to wear very quickly. You can also interchange the wheels to make everything wear evenly..