VR6Nat 9 Posted January 27, 2009 Report Share Posted January 27, 2009 Hey im thinking of changing my standard 15" (205-50-15) wheels for some 17s (205-40-17)....Will this affect my speedo as the rotation is bigger? If so is there a way of adjusting the speedo to suit or do i just have to figure out what im actually doin?!! *-) Link to post Share on other sites
Dave Lea 4 Posted January 27, 2009 Report Share Posted January 27, 2009 yes it wiil but dont no about adjusting the speedo Link to post Share on other sites
mike 6 Posted January 27, 2009 Report Share Posted January 27, 2009 dont mess with teh speedo mateit effects it but very very minor, 1 or 2 mph at the most....if you have sat nav it should tell you the correct speed, so you can work out the difference. Link to post Share on other sites
VR6Nat 9 Posted January 27, 2009 Author Report Share Posted January 27, 2009 Cheers guys! I think ill steal my mates tom tom for a week or so just to be safe! Link to post Share on other sites
Phat VR6 3 Posted January 27, 2009 Report Share Posted January 27, 2009 your car as standard does 25mph when it says 30 on the clock (set at factory to cover you for speed cameras and police) So it does change but only makes it more accurate lol what im trying to say is your not going to set off speed cameras or get done by the police so you have nothing to worry about Link to post Share on other sites
thegoth 5 Posted January 27, 2009 Report Share Posted January 27, 2009 ~1 mph @ 60http://www.1010tires.com/TireSizeCalculator.asp Link to post Share on other sites
VR6Nat 9 Posted January 28, 2009 Author Report Share Posted January 28, 2009 Thanks guys!!! Link to post Share on other sites
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