Great in sand and mud, loose trail. I ride a mix of gravel pits and Akeley, MN DNR trails and love this tire- I have it only on the rear of my '93 KDX200 at this point but will be putting the matching front on soon. I've used this tire for maybe a dozen+ hours of riding so far. Note that it is a soft terrain tire and it is "wiggly" on hard surfaces. The trade for loose hook-up is worth it, but some might prefer a soft/intermediate tire for the trails.