[Ah2002] didn’t like the shaky needle in his car’s speedometer so he replaced it with a ring of LEDs. The old speedometer had a cable which rotated along with the gearbox for mechanical speed ...

The long answer is that the automaker calibrated the car's speedometer to work with a very specific tire and wheel size. Installing a tire and wheel with a different diameter throws off all those ...

I have an old (1976), 24 volt ex-Army Land Rover ... Cars made before 1932 do not have to have a speedometer. Are there any special dispensations for these cars when they pass through camera ...