I stand Corrected....Run Flats Sux Donkey BA*&

[wpr]

all this is very interesting and seemingly accurate, but - i have 20s, and the Dunlap RFTs, and have been getting around in the snow just fine.

yes, i can tell a difference - and yeah it's the temp more than the white stuff, BUT, having learned to drive in Ohio, in the snow, etc, the X does just fine on main roads, even snow/ice covered. YMMV

granted I know there are limitations, i.e. where and when i cannot drive, so I guess the bottom line is really - if you know what you're doing you should be able to get around just fine on these tires, but if properly outfitted with snow tires, you can likely go anywhere.