Total Motorcycle Community Forums

I was going to suggest a GPS as well, but I was beaten to the punch.

Here in Alberta, there are "odometer test" sections marked on some highways. It's a 10km stretch, with markers once every km. That and a stopwatch will let you find out just how accurate your speedo is.

Ok, so how do you adjust the speedo after you find out how much it's off by?

One way is by installing a SpeadoHealer.