Reading tire sizes

The tire sizes of the tires that we sell are indicated with 2 different size dimensions.
Metric, for example 80/90/17 and in inches for example 2.50X17.

With metric sizes the first number stand for the width in mm, the second number stands for the height of the tire in percent of the width.
The third number stands for the size of the rim.

For example the size 90/80/17 is 80MM in width, 72MM in height ( 90 percent of 80 ) and has an inch size of 17.

With inch sizes the first number stands for the width in inches ( an inch is 2.54 CM ), the second number stands for the inch size of the rim.
For example an 2.50 X 17 size tire is 63MM in width ( 2.50 X 2.54CM ) and has een inch size of 17.

In the table below you'll find a comparison chart with those sizes.

This can be useful if you have a tire with inch sizing and would like a tire from our shop with an other size indication.