What Size Are These????
20 February 2003, 11:02 PM
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Hi, I am not sure you can convert directly as these are tarmac rally tires, but as far as I recall;
225/625 - 17 =
225 = nominal tread width expressed in millimeters (as normal)
625 = nominal overall diameter expressed in millimeters
17 = rim diameter (as normal)
On normal tires the second measure will tell the profile depth as a percentage of the width whilst on these tires the overall diameter is given.
Maybe someone with mathematical skills can make a precise conversion, but this converts to approx to "45"%
STIVII
225/625 - 17 =
225 = nominal tread width expressed in millimeters (as normal)
625 = nominal overall diameter expressed in millimeters
17 = rim diameter (as normal)
On normal tires the second measure will tell the profile depth as a percentage of the width whilst on these tires the overall diameter is given.
Maybe someone with mathematical skills can make a precise conversion, but this converts to approx to "45"%
STIVII
21 February 2003, 08:00 PM
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The second measurement represents the overall diameter of the tyre.
equation = -431(17") /2 (sidewalls) * 0.45 (Using STIVII's 45% rule) the sizes are
225/45/17 and 210/40/17.
equation = -431(17") /2 (sidewalls) * 0.45 (Using STIVII's 45% rule) the sizes are
225/45/17 and 210/40/17.
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