Ocoas, One of the points of interest at BMW rallies, before electronic speedo's, was to go around and see what the mileage was. It was bragging rights to an extent. You may have a bike a few years old but how many miles had you gone in that time. It was observed during a promenade about the rally site with a beer in hand checking out the bikes.
Not the same no mo, key off and the bike gives no indication of use.
The old round mechanical speedo's could be adjusted. Just remove the needle and reposition it with a change of spring tension. I got the speedo on my 750/6 dead on at one point. That was doing the measured interstate mile and minding the clock and distance. But the old speedo's were subject to mechanical failure too. So it may be accurate only for a while. There were a couple places folks would send their speedo to for repair. I gave up when the local place had two whacks at the odo on my R65 and it still failed.
Last edited by notacop; 10-20-2019 at 01:19 PM.