Fitting different tires that the original can cause serious speed indicator
deviations compared to factory standard.
In the above calculation model, 70,0 km/h on the dial is
Factory standard often introduces a speed deviation. Sometimes up to 5 or 10
% low !
Best is to check your speed on the dial at 50 / 80 / 100 / 120 km/h and
calculate your average offset by comparing this to a GPS. Keep this in mind when
choosing a tire size.
- Wider tires need to fit in the fender, under the wheel arch.
- It is possible to get speeding tickets if your speed dial is offset from the
- Some tire sizes can not be produced (anymore).