Tyre Calculator

Tyre Calculator

When considering changing your alloy wheels and tyres, it is necessary to maintain a diameter that is as close as possible to the original so that the accuracy of your speedometer is not adversely affected.

This tyre calculator shows how much of a change in percentage terms your speedo will have after you have fitted your new alloy wheels. We generally recommend a maximum of +/- 2.5% difference.

Stock tyre: / x
New tyre: / x
Standard     Metric
Stock tyre
New tyre
Alloy Wheel

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