MPI Dirt Circle Track / Dirt Steering WheelThe D4 15 XL is the latest evolution of MPIs dirt steering wheel line, originally inspired by the groundbreaking D Model developed with Donny Schatzone of the most successful dirt racers in history. Building on the success of the D2 and D3, the D4 15 XL represents the pinnacle of design, safety, and ergonomics for dirt racing. This wheel features the trusted MPI Safety structure and includes the same energy absorbing inner construction that helps