Ive just had a thought, if all speedos over read, dosent that meen that the service intervals are even nearer than they should be??
there is a speed trap that shows how fast you are going on campus, I go through (often) at an indicated 32mph and the speed trap screen shows 29mph. So thats a 3mph over read. Assuming that this is only incrasing the over read in a linear way, so 64mph would actaully be 58mph, we could be getting jipped even more!!
for ease of maths 5024 miles indicated (for a service interval) would actaully only be 4553 miles covered. which over a life time of bike ownership and servicing is a fair amount of miles.
also you have to take into account resale value, 10,000 miles indicated is nearer 9,000 actually covered, which would keep the resale value of weekend blast bikes higher for longer.
and then fuel economy stats, would also be lower if the bike/car had to travel the actually distance rather than indicated distance.
maybe a conspiracy??