OK, I assume you have ruled out the obvious,
yours is in MPH and his is in KmPH?
30 MPH is approx 48 KmPH.
"Plant, Keith Contractor (NSAGAETA 60)" wrote:
> You may remember my question about RPM's and how things didn't seem right.
> Well, I paced myself with a fellow American here in Italy. When my speedo
> read approximately 30 miles per hour, he was reading 42. When my speedometer
> was reading approximately 10 miles per hour, his was reading 18. I have a
> Smith's speedometer. Is this in need of calibration (if so, how would one
> go about doing this?) or is this just a flat out replacement? My tires are
> 165 R14, so I don't believe it's the tires.
> Thanks in advance.
> Keith Plant
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