Mostly rocky and dry dirt. Last time I went it was muddy thou. My buddy runs the m404 & 403 combo which are the tires I was leaning toward but he runs like 3lbs in the rear since he has an 18 on the back. So I thought I'd try some other stuff jus to see but all the others I look at are 110/90. Dunno if I'd be able to tell the difference between a 120/80 & a 110/90 or not to be honest.