a. width of tyre (mm)
In this image it shows the tyre is 185mm
In this image it shows the tyre is 185mm
b. profile as % of a width
In this image the ratio is 60% roughly 11mm
In this image the ratio is 60% roughly 11mm
c. Diameter of inner rim.
In this example it shows that the rim is 15″ in diameter.
From this you can also work out your rolling circumference
