Don't care how they do in mud, sand, dirt or tarmac. Don't care how much they cost or how long they last, doing a RallyMoto event on forest service gravel roads (hard pack with gravel on top) and want the best tire period, but they do have to be DOT. Fronts tried: Maxxis 6006 & MT-21 Rears tried: 6006, Dunlop 606, MT-21's Been considering running a DOT trials tire, or something like a Kenda K760 (opposite ends of the spectrum). Please reply with relevant GRAVEL tire experience, Pacific NW road experience would be great. Light DS bike (DRZ), speeds up to about 90 on straights. Consensus for dirty riding seems to be MT-18HD front (having a hard time locating now and either MT-21 rear or Trackmaster II). Issue I have with the MT-21 F/R setup I am running now is front end washout and pretty lame rear traction. The tire I am looking for very well may NOT exist (marbles on concrete floor) but... Anyone gots any input?? Gracias.