I'm not an expert on all this crapola, but last night was fun...most the guys out there modify their suspension on their quads so they sit really low to the ground, and of course, have street tires on instead of knobbies. Pauly Paul had his quad out there, but his stock knobbies were getting worn quickly.....I rode around the track once on one of Abbott's Banchees, and it was fun...totally different feel....