Tyre size calculator for Current Tyre Sizes
| Matching overall diameters if changing wheel & tyre sizes is necessary to ensure ride height & gearing don’t change | |||||
| Old » Tyre » Size » |
Tread Width | Profile Height | Wheel Diameter | Overall Tyre Diameter | |
|---|---|---|---|---|---|
| mm | % | inches | inches | mm | |
| It is quite easy to select impossible tyre sizes or sizes that are not made! | |||||
| New » Tyre » Size » |
mm | % | inches | inches | mm |
| We recommend ±2.5% is the MAXIMUM difference in diameters | |||||
| Difference in Diameter: percentage = | % | actual = mm | |||
Use the TAB key to move between the fields then the ARROW keys to select the values
(SHIFT+TAB reverses direction of selection) or the MOUSE selects from the Drop Down Boxes)