I have (4) 5mm Motorsport-tech aluminum spacers. They have a 54.1mm center bore and the 73.3 wheel centric ring which could be machined to fit and wheel with a center bore for 73.3 or less or used on SSR MKI without modification. They have been mounted once but I sold the wheels before they were ever used. Asking $65 shipped to lower 48. I am located in the Clearwater, Florida area.