There was a long thread here on how the size of the tire-patch would be the same regardless of tire size if tire-pressure was the same.
Concerning this, I have a question.
If tire-pressure and tire-patch are the same, ground-pressure is also the same. However, everbody always tells me that with wider tires you will start aquaplanning more quickly. In my opinion that doesn't make sense. If the contact-patch is the same size (but different in shape) the amount of water to be displaced by the tire is also the same so aquaplanning should occur at the same speed. At the same time there is always talk about how much more grip you get on a dry surface when using wider tires. Same goes for F1-cars. These weigh very little compared with a normal sedan yet use extremely wide tires which should give them a very low ground-pressure. So why then the large tires if larger doesn't give you more grip. I must be missing something here.
Concerning this, I have a question.
If tire-pressure and tire-patch are the same, ground-pressure is also the same. However, everbody always tells me that with wider tires you will start aquaplanning more quickly. In my opinion that doesn't make sense. If the contact-patch is the same size (but different in shape) the amount of water to be displaced by the tire is also the same so aquaplanning should occur at the same speed. At the same time there is always talk about how much more grip you get on a dry surface when using wider tires. Same goes for F1-cars. These weigh very little compared with a normal sedan yet use extremely wide tires which should give them a very low ground-pressure. So why then the large tires if larger doesn't give you more grip. I must be missing something here.