Quote:
Originally Posted by bigwave2255
from my experience with 19 inch rims and factory sized tyres at an indicated 100 kmph im really only doing 95kmph
actually across the whole speed range im really 5 k slower than indicated
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Regardless of whether you're on 17s, 18s, 19s or 20s with the factory tyre sizes your speedo will overread. All cars do it by somewhere between 2-3% and 10%.