with prodrive pff7 on the s2000 do i need hucentric rings to make these fit and ride well?

 

They should have a 73mm standard bore. U dont need them on the rear either, but i dont have vibrations because my lug nuts center the wheel on when u tighten them.

 

First off there is not standard bore. Scecondly, if the wheels are not using a centering ring there can be a vibration. There is no way you can center something on 5 lug nuts. It is impossible to do. I would just make sure you get rings so you don't have that chance.