>>> Matt,EXACTLY! Nice tosee someone else understands these things.Most
>>> people think you want wider tires.
[quoted text clipped - 3 lines]
> I always use narrower snow tires (and often narrower wheels) in the
> winter, but I've never found the need to use taller tires.
Can you explain a bit?
Logic would dictate that wider would be a better grip but narrower on the
front, at least, would be less resistance. Is that the concept?
Brian Nystrom - 18 Oct 2006 22:30 GMT
>>>> Matt,EXACTLY! Nice tosee someone else understands these things.Most
>>>> people think you want wider tires.
[quoted text clipped - 6 lines]
> Logic would dictate that wider would be a better grip but narrower on the
> front, at least, would be less resistance. Is that the concept?
No, narrower tires, with their longer, narrower contact patches, are
superior at cutting through the snow and slop to reach the pavement
underneath. Wider tires, with shorter, wider contact patches are more
prone to float on top of snow and hydroplane in slush.
That's why off-road rally racers use narrow tires in snowy, slushy,
muddy conditions.
Matt Whiting - 18 Oct 2006 22:30 GMT
>>>>Matt,EXACTLY! Nice tosee someone else understands these things.Most
>>>>people think you want wider tires.
[quoted text clipped - 8 lines]
> Logic would dictate that wider would be a better grip but narrower on the
> front, at least, would be less resistance. Is that the concept?
No, in snow you want the tires to sink down and grip something firm, not
float on top and slip around. In sand, you want floatation, but in snow
you don't. Yes, there is less resistance also with narrower tires, but
I think that is a second order effect.
Matt
>>> Matt,EXACTLY! Nice tosee someone else understands these things.Most
>>> people think you want wider tires.
[quoted text clipped - 8 lines]
> taller tires, perhaps 1/2" (or less)? That seems unlikely to make much
> of a difference.
I've driven in well over 2'. The ground clearance isn't a big deal in
fresh snow, but with packed snow in the center of a rutted road, even
1/2" can be the difference between making it and not. And with my
pickup, I can easily gain well over 1" in ground clearance with a tire
change. I agree that 1/2" is probably the max you can achieve with a
small car.
Matt