Aluminum Steering Wheel BIG Pro Grip 15" IMCA Dirt Modified Circle Track Bryke Racing 15" Progrip Aluminum Steering Wheel 3" Dish Has both 1/4" and 5/16" bolt mounting holes spaced 1-1/2" Big Grip 1-1/4" allows for a firmer more comfortable grip Welded finger nubs spaced 1" apart for additional grip