17 X 12 with 335/30R17 rear, and 16 X 9 with 245/45R16 front. So this makes the front tires slightly taller than the original race diameter, and the rear tires slightly shorter than the original race diameter. Thus I had to account for that when I designed the pickup points for the suspension and bodywork wheel openings, given a "street" ride height, and compromised "track" ride height. I would desired 15" wheels with vintage Avons or Goodyear tires, but that was impractical for the street, and risk of future availability. Also, with the offset of the front wheels, and the uprights in use, 15" wheels would have been a real challenge.