Maverick Ice Racing ScrewsMaverick ice racing screws are a staple for amateur and professional ice racers alike and have been used in many endurance series including the Numb Bum 24. They feature a 1 4" tall head with grooved out center to evacuate ice and bite harder, with a larger 7 16" base flange to keep them stable and larger diameter threads to grip the tire. They can be used in dirtbike or ATV tires, although the shortest length option is 1 1 4" and requires a tire