Speedo Accuracy

[Dazz]

I know speedos arent accurate but i was thinking that the speedo will give a different reading if the front tyres are new or only have a few mm of tread left. Basically cos the tyre will have a smaller circumference hence the speedo will be a little more generous when the tyres are older.

Does that make sense?


[Edited by Dazz on 24 May 2004 at 10:39pm]

 

[jongsr4]

true but the difference will be so small you probably wont notice it

 

[edde]

Yep. All speeedos have to be accurate to withi +0% and -10% so they will never over read.

Say 5mm wear on a tyres for a normal dynamic. I think works out to be about 1.5% chnge ie 100mph is achually 98.5mph

 

[Mondial172]

Quote: Originally posted by jongsr4 on 24 May 2004

true but the difference will be so small you probably wont notice it

Says the man who drives with bald tyres!