17-10-11, 10:29 PM
Quote:It has mph in bigger writing and kph in smaller.
That sounds like a standard UK spec speedo dial.
If I were you I would find a quiet stretch of motorway and ride at a constant indicated 60 past 10 of the 100 meter posts (They are about 2 feet tall, white with red/blue tops.) . That way you don't have to trust any technology (speedo or sat-nav) to know the truth.
(Use a clockwork watch ... if you don't trust the quartz-digital version :\ )
If it takes anything other than 37.5 seconds to pass 10 of those then your speedo is out.
Do your own sums!
And beware ... they are usually missing at junctions, 200 meters between posts. :rolleyes