As we all probably know, not all tires of the same size are actually the same size (see comparisons below of two 315/35r17 tires from Sumitomo and Goodyear -- disclaimer: these are not my photos). The topic often comes up on this forum of actual tire sizes (specifically tire widths) from different brands and models. Our cars came with wider tires than the standard Corvette which led to a wider rear body. This gives the ZR-1 a unique look and wider rear tires help preserve that look. Photos of different tires helps with providing an idea on tire width, but photos can be deceiving and what we really need are actual measurements. With that in mind, I thought I would start this thread and share measurements I've taken on tires I have had recently. Hopefully others will contribute with actual measurements on other tire brands and models.
