* O* P: R f9 K; T0 Q•Fat tire: You can float on top of the snow if you don't have to go through it (e.g. snow buggies). You have a larger contact patch with the ground for summer. B/ R( |1 N% W9 r7 o: a•Skinny tire: Will find it's way through the snow to find some pavement to grab onto. ( N; q' h- [& ?* O% y•Studded tire: Works great on ice but has no effect on snow/slush/other stuff. 3 v' p1 m2 k0 h2 q! d* U( \0 P$ H