Hey Travis,They look to me like a CSA wheel.Whole package looks great!Hope someone can come up with an answer!I was at Mount Panorama hill climb the other day, Steven Parashis Brown XT Falcon was in the same class and came second to a late model Something, Google the car, it’s a monster!https://www.westernadvocate.com.au/images/transform/v1/crop/frm/YpbCWLfGAstDHC22gJwdbm/9cbabaec-8ccd-46e4-9ddb-954dd4a49874.JPG/r24_249_3500_2191_w1200_h678_fmax.jpgCheers Phil.