Slicks are not ment for offroad. I use my tom slicks for riding on the g rass but never more than that. I know how sheldon brown says that companies produce tires with very fine tread for appeal to the customer and honestly i think that is what Ritchey is doing with this whole "Vector Force Analysis" tread, i dont feel any difference or anything and i think the cutouts are too shallow for that. It rolls really nicely though