speedo with 17s

[ClioRoss]

Ello people ive just put 17s on me clio 2001 model 1.2 16v and wonderd if anyone else is speedo is out from doing this. cheers

 

[Dan##]

yeh mate it will be, the speedo works by revolutions of the wheel, and speed is calculated by the tyre size!

 

[ClioRoss]

do u no how much it most likely is out by im thinking its out by about 3mph but not sure

 

[Liam]

so will your mileage by going up incorrectly?

 

[ClioRoss]

has anyone else got 17s on clio that no how much speedo is out cheers

 

[KyleB]

well i was following my dad home and he has a Road Angel 2. My speedo said i was going 60mph and his RA2 said we was doing 60mph too, so i dont think there is too much difference.....maybe at 100mph+?

 

[SimonV6]

http://www.miata.net/garage/tirecalc.htmlhttp://www.miata.net/garage/tirecalc.html



That will tell you the difference between different tyre sizes and give you speedo error.



Simon.

 

[172 Exclusive]

The speedo will only be out if you have not fitted the correct tyre size..

So as long as the overall Wheel/tyre Diameter is the same as the origionals then there will be very little error

 

[ClioRoss]

k cheers guys

 

[Fred@BTM]

ive found when im doing 77mph on the clock, im actually only doing 70mph, but who cares???????

 

[BRUN]

if your on 205/40/17 it shouldnt be *that* much different

 

[RobFenn]

I used a Road Angel last week, is the gps speedo meant to be spot on?

I have 16s instead of the standard 15s which is overall a lesser diameter..and Road Angel reckons my Clios speedo is out by quite a bit, by about 7mph when i get to 100mph.

-Rob

 

[SimonV6]

Quote: Originally posted by RobFenn on 29 November 2004


I used a Road Angel last week, is the gps speedo meant to be spot on?

I have 16s instead of the standard 15s which is overall a lesser diameter..and Road Angel reckons my Clios speedo is out by quite a bit, by about 7mph when i get to 100mph.

-Rob

Use the link I put in my post above, put in your old and new tyre sizes and see what it says....



Simon

 

[Deeg]

What is the standard 13ins tyre size?

 

[badinvincible]

Quote: Originally posted by shmall on 28 November 2004


http://www.miata.net/garage/tirecalc.htmlhttp://www.miata.net/garage/tirecalc.html



That will tell you the difference between different tyre sizes and give you speedo error.



Simon.





Cracking site.