It is right to crush a tire to bend a motorcycle at the corner
I think that such conversation began to be heard among riders "crushing and bending the tires" I think that it was the second half of the 1980s when radial tires began to spread. A wave of radialization also rushed into the racing tire and began to spread to the rider as an image to ride it.
At that time, I was working as a racing tire development rider with Yokohama rubber, and in a story with Yokohama user, when one of them said "It is a feeling of crushing a tire", it is a key point I was feeling as if I was holding down.
The grip force of the tire increases as the load applied to the tire increases. Not being in a proportional relationship, there is a limit to the increase in grip power, but the feeling of load and grip feeling is important for riding a motorcycle.
However, if it is a bias tire from a long time, when a load is applied, the entire tire including the tread and sidewall tends to bend, and the bending feeling due to the load may be difficult to grasp. Therefore, it can be said that we were grasping the feeling of load as if the whole rubber girders were to be deflected.
However, if it is a radial tire, the tread which is firmly compacted with the belt and the flexible sidewall make the role sharing clear by the radial carcass, each of which demonstrates high function. Therefore, it becomes easier to grasp the deflection of the sidewall as crushing feeling.
In other words, in order to make full use of the grip force of the radial tire which has been increased in the tread, it is necessary to sense the crush feeling of the sidewall. That means "crush the tire and bend".
Crush feeling is not bullying feeling
However, there is a sense that this sense of "crushing the tire" is walking alone.
Some people think that this feeling of collapse is perceived as a feeling that the tires are crushed and screaming. Then it seems that you are satisfied that you are attacking to the limit.
Instead, you should think that you are crushing the sidewall so that the tire is able to demonstrate its grip ability straightforwardly in the neutral state. By applying a load, we do not tease a tire, but instead roll it obediently.
To put it more, it is a dangerous ride to crush the front tire at the primary turning part using the front at the beginning of the turn, and to feel the collapse at the secondary turn toward the full bank is a dangerous ride.
In addition, it is good to think that the feeling of collapse increases in the rear when entering the secondary turn and transferring the load to the rear.
Maybe you can forget to crush the tires
However, recently it seems that it is going to be said less often about this feeling of collapse.
I think there is evolution of the tire in the background. Recent radial tires, especially at the front, radial carcass carcass angle is not full radial at 0 degrees, semi-radial around 20 degrees is mainstream.
Giving moderate rigidity to the sidewall, suppressing the radial odor in a bad meaning, it adds natural bias like in a good sense. And, including matching with the rear, it is making such naturalness.
Therefore, it is getting rid of conscious of the feeling of collapse. In that sense as well, the motorcycle may not be conscious of the rider as such and may be evolving to be able to enjoy with the mental feeling.
