QUOTE(polarispunk @ Feb 5 2007, 06:00 PM)

they can slide out and fall over, kinda like a dirt bike on ice. the one i rode was kinda cool but nothing i would really want to ride on a trail all day long.....don't know if you can stud them or not but if you can i think that would make the experience better. they also make an upgraded ski that if better for trails. if your really into dirt bikes you will like it, if your not, don't waste your money.
I started out riding dirt bikes when I was a kid so I think it would be fun to ride one. They do sell studs for them which from what I read makes them handle in the trails a lot better.