I've been filling up at 80-90 miles on the trip meter with about 40 miles left on the range. I don't go easy on the throttle though the range always says somewhere around the 180mile range after I fill up.
250 km is the worst I've had and approaching 290 km is the best. I live in the countryside and don't commute so traffic is not a factor. Those figures are taken from my gps for distance and actual fuel required to top up the tank. The KTM instrumentation is rather optimistic! This doesn't include trackdays or similar as I havent done one yet. On my GSX-S 1000 for comparison, road consumption was around 5.5 lt/100 km and at the track, it was nudging 10 lt/100 km.
I have to keep track. Typically I should get 3 days of commuting, which is 50 mi total round trip, so about 150mi per tank, but sometimes its less and sometimes it's more. I have yet to dip below 2 bars, but I don't trust the float as the miles to E pretty much sucks! I think I could get around 180mi or so.