hey thanks to all for the amswers but I am none the wiser.
Yes the speedo is Km/h
But not all the speedos in Km/h are the same.
I have a 773, I can see one which looks the same and is also in Km/h but is a 747
I cannot play with the broken speedo. I am about 10000 miles from the bike!
I cannot send it to a repair shop and wont have the time to do that.
I wonder if it is worth to buy the guts of another speedo or the 747, or it is just a lame idea and a waste of time and money.
Or if I can buy a R80 speedo and use the guts.