ATV Offroad Fury 2 Question

I just got my PS2 last Sunday July 4th, and I’m loving it. I got that combo pack that comes with a network adapter and a free copy of said game, so I tried it out and now I’m hooked (well, to that and SC2). :hahaha;

I have a question about Offroad Fury though: How does tweaking your traction and suspension directly affect your ATV’s performance? Engine is pretty easy to figure out, but the only things I know about those two stats are that traction affects how sharp you turn and suspension has something to do with bumps and air time. I don’t understand the settings themselves (hard, soft, tight, loose.) Any help is appreciated.