For most years, the stock sizes were 16x7 front and 16x8 rear. The SSC had 16x8 DP5's all around, not Roh's. In 1992, they switched to Stern wheels, using 17x8 on the front and 17x9 on the rear. Mid-year 93, they ran out of Sterns and switched to Speedlines that were a half an inch narrower on all four corners for the rest of 93.