Forever Sharp Yamaha Golf Cart 5/6 Hole Black Aluminum Steering Wheel Adapter Made of aircraft standard 6061 aluminum that has been powder coated black This adapter fits all Yamaha golf carts from 1979 to present and all 2004-2010 Rhino models Has a universal 5/6-Hole bolt pattern which is compatible with NRG, MOMO, Forever Sharp, Grant, and Sparco wheels Diameter: approximately 3 1/2 inches and tapers to 2 inches Height: approximately 3 1/8 inches Pitch circle diameter is 2 3/4 inches or 70 milimeters