Wait...WHAT IF HIS SPEEDO IS OFF TOO!!!!! :shock: :lol:Narcisse91 said:The best thing to do is get a friend to go along side you and check it at a few different speeds.
Cars seem to be more accurate. I've timed mine on long boring highway trips (with mile markers) and they are usually much closer.Stuart said:Wait...WHAT IF HIS SPEEDO IS OFF TOO!!!!! :shock: :lol:Narcisse91 said:The best thing to do is get a friend to go along side you and check it at a few different speeds.