Why do you assume it's YOUR bike with the error and not the Honda? The Japanese stuff isn't perfect, you know.dfhand said:Has anyone encountered a speedo error? My wife’s bike (Honda) shows 45 mph and I show 40 mph. Trying to hook up with local PD to verify with radar.
Assuming the mile markers are EXACTLY one mile apart.ion-man said:Or, just borrow someone's portable GPS (LOTS of folks have them these days) and have it save your maximum MPH. Then you can check the GPS, Honda and V-Rod. I've seen several Honda's that are high (never low) on the speedo.
You can also (with a stopwatch) check your speed easily using mile markers. At 60 MPH it will take EXACTLY 1 minute to travel a mile. If it takes LESS than a minute, you are going OVER 60. If it takes MORE than a minute, you're going under 60. Simple algebra will tell you how far off you are.
(For the V-rod, at 120 MPH it will take exactly 30 seconds to cover that same mile... but you get the point.)