Originally Posted by
genejockey
1) Is it, though? Less volume so an equivalent bump would be more compression, no?
I hear it has to do with the shape of the tire's contact patch -- long and thin vs. short and wide. Increasing the contact patch under additional load causes the "long and thin" tire to deflect more.
Or something like that. It's also the reason why skinny tires are more prone to bottom out, I think. It's hard to visualize.