The axis of the hands touch the floor of the car, not the front wheels. However, the vertical distance l from the point of contact with the ground. As shown in Figure (2), which is an arm of the force of friction on the bicycle on the axial tilt to the left.f takes the floor, moments of force (f × l) acting on the front wheels. The moment of this force will cause the front wheel to the left, twisting it. So we can rely on the arm of the balance of the bike. Although we will release it.(1) it is not possible to move the hand truck to maintain balance. Necessary to tilt the balance has to be maintained.