I plan on running 19" 9.5 and 10.5 with 275/35/19 front and 285/35/19 rear. I am thinking of using 24 offset on rear, but not sure on front, as most people seem to run smaller front tires. This is also on a roadster, but I don't think it will make any difference. Wheels are sf winning, and I will buy toyo tires.