Well, now that I know what you have to do to make Hoosier 225/50-16 R compounds fit on a GC8, I decided to take some measurements of them. To get these tires to fit on a GC8 with no rubbing you have to remove the front top fender liner, remove the rear rubber trim piece that goes around the fender well, roll the inner edge of all four wheel wells, get a 1/4 inch 5x100 spacer for the rears and a set of longer wheel studs for the rear. That was the hard part. But back to the subject matter.
Total width on 7 inch rim (which is the rim size Hoosier recommends)
247.6 mm
Tread width mounted
231.7 mm
Sidewall height to rimlip
87.3 mm
Total Tire height
622.3 mm
Total Rim height 16 inches =406.4 mm
622.3-406.4=215.9
215.9/2 = 107.95 mm sidewall height
So going from this, since I have determined that a Hoosier 225/50-16 A3S03 race tire is actually a little closer to
a 232/46-16. SO rounding the numbers to the closest standard size it is closer to a 235/45-16 than it is to its labeled size.
Yes, these are the things I do and I think about when I am bored.
Total width on 7 inch rim (which is the rim size Hoosier recommends)
247.6 mm
Tread width mounted
231.7 mm
Sidewall height to rimlip
87.3 mm
Total Tire height
622.3 mm
Total Rim height 16 inches =406.4 mm
622.3-406.4=215.9
215.9/2 = 107.95 mm sidewall height
So going from this, since I have determined that a Hoosier 225/50-16 A3S03 race tire is actually a little closer to
a 232/46-16. SO rounding the numbers to the closest standard size it is closer to a 235/45-16 than it is to its labeled size.
Yes, these are the things I do and I think about when I am bored.