tire size \ speedometer

[Festiva_newbie]

So what you guys say, is that with a different size tire that was originally on the car, the speedometer will be off? Basically, I could be driving faster\slower than the limit, and could be racking up mileage when really it's not, or I could be pretending to go 5km's when really I'm doing 6? Cause that'd be cool. That would add up

How does that work?

[mattswabb]

Here is a calculator that you can compare different tires and see the speedo difference http://www.1010tires.com/TireSizeCal...?action=submit

matt

[Biff]

Wondering if any body has changed the speedo drive gear inside trans to fit particular tire sizes? , you know , so that the speedo reads correct to actual speed?

[brownspank]

Yeah, that's sort of a popular taximeter hack; having your meter calibrated, then changing to a smaller tire size afterwards. You could do the opposite to keep mileage down on a private car that you plan to sell later on.

But we all know this is bad karma. 8)