Jay,
Your posy doesn't make sense. Toby is the one started this thread which is about the reading he took from his pivot speedmeter.
Toby,
One way to find out whether you are in fact measuring 0-100kmh is to set the meter and go for a run sitting at 60kmh. You can do this as you are cruising and don't have to do it from stand still.If it beeps and gives you a reading it is clear that the reading is for 0-100m not 0-100kmh. You can try the same for 0-200, 0-300 and 0-400. I am sure you will find that all the readings are for distance not for speed.