Why does the motorcycle tilt when turning?

The body posture of motorcycle cornering is different from that of automobile cornering. Most cars have four wheels, which can balance and support the vehicle when it is at rest, and the body will lean outward when it is cornered. Motorcycles are mostly two wheels, which need to be supported by feet when they are stationary, otherwise they will roll over. When turning, they lean in the opposite direction of the car, but inward. The root cause, I think, is mainly related to body structure and stress process. ?

When a car and a motorcycle turn a corner, because both of them change the direction of movement and because the car body has certain inertia, both of them will produce a centrifugal force on the outside of the corner, which is related to the total mass of the car. The car is supported by four wheels, so although this centrifugal force exists, within the limit speed of the car cornering, the four wheel fulcrums plus the weight of the car can support the car body from rolling over; The motorcycle has only two fulcrums, so in order to overcome this centrifugal force of cornering, another force is needed to offset it-that is, gravity inclines inward. This is the fundamental reason why the motorcycle body tilts when cornering. ?

When the motorcycle turns, because there are only two wheels, the centrifugal force will make the motorcycle turn outwards, and it is impossible for us to support the ground with our feet when running, so we can only press down naturally, and the outward centrifugal force will be offset by this bending force, so theoretically we can turn smoothly.

Why in theory? Because motorcycle cornering is dangerous to some extent, people who bend a motorcycle will generally call it cornering. Some cyclists who specialize in bending can drive their motorcycles to their knees or even elbows like people in MOTO GP. Because the faster the speed, the greater the centrifugal force they need to bear, so the lower the angle is needed to overcome this outward force. But in this case, the lateral friction on the tire will be greater. When this lateral force exceeds the friction of the wheel?

Just shoveled it out once last month, when it was in Beihai, Guangxi. After riding in Silver Beach, I rode to refuel. When crossing a corner, it hurts to press it. At the corner, I really shoveled it out. Therefore, although the motorcycle can tilt when turning, it cannot exceed the limit angle of tilt and the grip limit of the ground.

In a word, for a motorcycle, the outward centrifugal force needs to be offset by the inward inclined gravity during turning, so that the motorcycle can turn smoothly. However, due to the grip of tires and the friction of the ground, there are certain restrictions on turning. When riding, you should not exceed the turning limit of your body, otherwise you will risk falling off the bus.