Speedometer Accuracy ?
Originally Posted by Doc
I have one I run with, it connects to my watch. My speedo is accurate according to the GPS I have. My watch is an Ironman, I think the whole setup cost me $250. There is a pic in the gallery with the GPS unit on my arm. I used it when I ran a half-marathon.
My wife has a Garmin that she puts in her "Camelback".
She Resets the Trip Odometer to ZERO and goes for a run. It reads to then nearest Meter...
Originally Posted by zinner
I have a Garmin GPS V and it's great. It's about the oldest GPS on the planet but it still can autoroute 
Anyhow my Speedo reads about 3 mph more than the GPS says.

Anyhow my Speedo reads about 3 mph more than the GPS says.
I have a GPS unit as well. My spedo is usually a couple mph faster than what the GPS read. I was thinking that maybe the GPS may be wrong, but now may be thinking that the spedo is wrong. I cant remember how many mph it was off with the stock tires but either way its only usually off by a couple mph.
Originally Posted by snowcrash
I have a GPS unit as well. My spedo is usually a couple mph faster than what the GPS read. I was thinking that maybe the GPS may be wrong, but now may be thinking that the spedo is wrong. I cant remember how many mph it was off with the stock tires but either way its only usually off by a couple mph.
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