Hey, all.
I was just reading some old threads on the speedometer error issue. I just acquired a Garmin 60CSX gps and mounted it to the handle bar...now I can see the error that everyone was talking about (with understanding that the gps would have a small error).
Has anyone figured out a way to calibrate the speedo?
Should I just go fast as hell and wait for a cop to tell me my speeds? (not a very efficient way to calibrate

)