Just how accurate is the speedometer on the 888? What speed are we really doing when the speedo reads 80mph? It feels a good deal less to me! Anyone ever measured their true speed against a known value?
My 888 is pretty good. I have been running about with the GPS on board and while the bike speedo tends to err on the high side, it's only ever by a few MPH.
If yours is like mine, I'd expect your 80 to be a true 75.