svt13 Posted January 22, 2013 Report Share Posted January 22, 2013 How much off will the speedo be with a michelin PSS 295/35 rear tire? I remember seeing this in another thread but I can't find it. Was it that when my speedo says 60 I am actually going 60.5? Just checking to see if that is right. thanks Quote Link to comment Share on other sites More sharing options...
mullens Posted January 23, 2013 Report Share Posted January 23, 2013 You are correct. .5 mph slow at 60. Quote Link to comment Share on other sites More sharing options...
Squirrel 007 Posted January 23, 2013 Report Share Posted January 23, 2013 Your Michelin tire is 7mm bigger in circumference than the stock. Just have to do a few more calculations to figure out how much more distance is covered per revolution of the tire and then extrapolate that out to figure how many MPH difference there is between the two. Or you could use .5 MPH at 60 MPH if you misplaced your calculator. Quote Link to comment Share on other sites More sharing options...
svt13 Posted January 23, 2013 Author Report Share Posted January 23, 2013 thanks and yes I misplaced my calculator lol Quote Link to comment Share on other sites More sharing options...
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