Crowder's Conversion Adapter - 6 Hole Hub Adapter with 70mm PCD (MOMO, NRG, Sparco, OMP, etc) to 3 Hole Steering Wheel with a 48mm or 50.8mm PCD (most Karting or Formula) - Black - Part # MK5048BK. Allows you to install most Karting or Formula 3 hole steering wheels that have a 3 hole with 48mm or 50.8mm bolt pattern onto a 6 hole hub adapter with a 70mm bolt pattern (MOMO*, NRG, Sparco, OMP, etc). *NOTE: Does not fit MOMO solid hub adapters that have a lip.