Quote:
Originally Posted by kimona
My speedo was off right out of the box. After installing 205/50/16's, I was surprised to discover it was bang on!
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This makes me wonder if there are different ring and pinion sizes for the speed sensor. Because I'm using the supposedly "STOCK" 185/60 R15 tire size, and I'm going 3.3% faster that what's indicated by my speedometer. Really annoying.
It coincides with what this calculator says:
http://www.rimsntires.com/specspro.jsp
Punch in 175/65 R14 for the first set and 185/60 R15 for the second set.