Me and a friend of mine, who has a 400 ex, went muddin' this weekend, and let me tell you, I was pretty impressed. He had a set of Vampire mud tires on the back, and he got through the mud every bit as easily as I did ('04 Foreman, no mud tires). Not too bad if you ask me.

 

We don't have major mud here in So. Calif., but we have had lots of rain this year and have had weay more mud than usual. We were riding where if you got off the bike you would fall down, the mud was that slick. The old 400EX even with Holeshots on it, worked like a wonder. It got me through everything, and did everything I asked it to do!