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Speedometer Correction


TommyDUB
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Hi all,

I'm a complete newbie when it comes to tyres, I'm currently running 175/65/r13 (standard on most lupo's) and I want to put 15" alloys on with a 195/45/r15 tyre.

Question is, will I need to correct my speedo? If so, does anyone know anywhere that would do it?

Many thanks people!

TD :)

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As Deadmetal's said your speedo will over read.

If you go sticking tiny wheels and low profile tyres on you'll run the risk of being done as the speedo will read less than you're actual speed.

That said, you'd probably have to put wheels that are so small you wouldn't get them over your brakes to manage that much of an under read.

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As said 15"s with 195/45/r15, so not too small haha, so theres no need at all to fiddle about with the speedo? My mates got a fiesta and he reckons putting 15's on his car makes him read 5mph too low, (so he'd do 35 in a 30 zone).

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