The Pit Bull Maddogs are mud-terrain tires, and so we headed straight to the slop to test a set. These bias-ply trail tires are offered with a 2,725-pound load D rating, and a ton of nifty marketing terms such as Tear It Up technology, also known as a puncture-, cut-, and heat-resistant carcass; Fang technology which has something to do with how the tread bites into the terrain; and All Bite No Bark technology that supposedly keeps the tires quiet on road while still offering great off-road performance. We found them capable off road, especially at low pressure, and, yes, they could take severe abuse, but maybe our ears have canine ability because we definitely heard them howling on the street. The Tear It Up technology seems to work great, but also requires a few good trail rides to get the sturdy sidewalls broken in for optimum flexibility. We found them to clean out fairly well in mud nonetheless. Other valuable aspects of the Maddogs are the rim protector, sidewall protector, and tread sipes. In the end we felt these tires offer up a great performance for a dedicated trail rig, but street use would become annoying after high miles.