Snow tire fitment, quick question

[Grant Lenahan]

While sidewall stiffness may in fact play a part, my point has nothing 
- zero- to do with sidewall stiffness.

More size = more air. At any given PSI more air = more resistance.

More resistance = less damage of bottoming out the tire.

Grant
On Nov 2, 2006, at 8:18 AM, Taka Mizutani wrote:

> Load rating doesn't necessarily make the sidewalls stiff enough to 
> avoid damage from potholes, though.
>
> I'm running XL-rated snows (225/45R17 97V Nokian WR) on the R and the 
> sidewalls are noticeably softer than the OEM 235/45R17 97Y rated 
> Pirelli P Zero Rosso.
>
> I haven't had any issues with bent wheels due to tire choice- my cars 
> run in the Northeast all the time and although I try to avoid 
> potholes, I do hit them from time to time and there are spots where I 
> drive where the pavement is so broken that it is impossible to avoid.
>
> Actually, I think I have more issues with bent wheels with ultra stiff 
> sidewalls- the sidewalls don't yield, so the wheels take more impact. 
> Falken RT-615 don't help in this regard.
>
> Taka