Method of keeping the front wheel grip
1. There is no big speed difference between the front wheel and the ground during driving.
2. During driving, the positive pressure between the front wheel and the ground is not reduced too much. It is better to increase the positive pressure. These two must be met at the same time.
In the actual operation, the handle brake must be satisfied at the same time, so that there is a negative speed difference between the rear wheel and the ground during driving (the rear wheel speed is relatively low), and there is no large speed difference between the front wheel and the ground during running.