They aren't the best for MX. For XC they're very nice. I run a set of Klaw MXR rear tires and have been very happy w/them in all aspects. Earlier today though I ordered a set of new Holeshot MXR4 tires though b/c dealer's giving them to me at cost to try them out for them to see if the rest of the race team will use them or not. I just need to get a new set of 8" rear beadlocks and I'll be set to put them on and ride come next mid week.