awdmoke wrote:
According to the tyre calculator
http://www.alloywheels.com/tyrecalc.asp#those 15s would only be 1.5% bigger than my 13s
That's correct. I didn't quite believe it when I was looking at it. I crawled under the back, just to satisfy myself he hadn't lengthened the trailing arms.
1071 used a much more scientific method - his hanky to measure the tyre radius and compare with the 12" wheeled Mini next to this one. Using this highly accurate method, it seems there was roughly 1/8 of an inch difference in radius.
