EVO 2 hehehe just to get this thread started. It will fit any crank in my opinion. previous MHR team crank, Polini Evo cranks, Mk Pro crank, MHR Rhq etc etc.
Performance has been tested in my racing efforts, and in my opinion the best variator there is now. and besides Evo 2 has been around for more than a year and yet only now has malossi gone in this route (bigger rollers, new tracks).