Some speed bumps increase the wear to the inner edges of the tyres (the type of bump that does not stretch across the whole lane). Speed bumps also increase the chances of the tracking of the vehicle being disturbed. If the tracking has been disturbed then one (possibly more) tyres will often be heavily worn on one side.

If the tyres are under the recommended tyre pressure then two major factors will come into affect 1) the tyre will wear quicker on both the inner and outer edges 2) The road resistance will increase making more work for the car to turn the wheel resulting in lowering the overall fuel economy of the vehicle. The car will also pull to one side whilst driving if the tyre pressures are not even.

If the tyre is over the recommended tyre pressure then they will wear quicker on the centre line of the tyre.

You should always try to have the same make and size of tyres on the front, or rear axle set. For vehicles with four wheel drive it is advised that all four tyres are the same.

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