Quote:
Originally Posted by Rexy03
std 17/45 = Overall Diameter: 625.09 mm - Speedometer : 100 km/h
18/40 = Overall Diameter: 629.15 mm - Speedometer : 99.3 km/h
18/35 = Overall Diameter: 607.56 mm - Speedometer : 102. km/h
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There you go. Go with the 40 as its closer to the original speedo reading.
Plus ive found 225/40 is a more "common" combo, so you'll probs have a better range of tyre choice.