Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/60-15 4.8in 12.3in 24.7in 77.6in 817 0.0%
215/50-15 4.2in 11.7in 23.5in 73.7in 860 -4.9%
215/45-15 3.8in 11.3in 22.6in 71.1in 892 -8.4%
225/50-15 4.4in 11.9in 23.9in 75.0in 845 -3.3%
215/55-15 4.7in 12.2in 24.3in 76.4in 830 -1.5%
205/50-15 4.0in 11.5in 23.1in 72.5in 874 -6.5%
So if we are running 215/50/15 based on the tyre size as it left the factory we are 4.9% out on the speedo ?
Did the gearing change on later models ?
If not why are we all scatting around trying to find expensive tyre sizes.
205/50 too skinny
225/50just fits but doesn't handle ?
215/55 not low profile enough?
Surely it's looks vs performance vs speedo accuracy ?
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