Line alignment of the vehicle does not pass the point of touching the surface of the front wheel, but the vertical distances. L from touching the ground, as shown in figure (2), that is, the force of arms, the friction surfaces have the catalyst when the bike tilting to the left. F that the ground force's torque (f×l) made to the front wheels and torque of this force will cause the front wheel to twist it to the left to fit. Therefore we can rely on the force of arms, maintain the balance of the bike, even though we will be releasing. (1) it will not be able to move your hands to maintain balance. Need to tilt the back to maintain balance.
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