The readout at best told me 334KM's to R once , my best previously had been 293 only difference is I added 2 degrees timing globally and have started gently rocking the bike sideways with my right leg against the primary when filling to get more fuell in it , so one or both of these things has improved my KLM's to empty read out. I don't think I get that far as i belt it a little bit too much ,it's just such a fun bike to ride.