Bit of a bump to this thread, but I felt I should comment. I do about 100km per week in commuting. The ZXR is getting 4.5-5.5L / 100KM, mostly cruising at about 6,000rpm in 5th (60km/h) with the occasional squirt of acceleration, mostly to avoid obliviously murderours car drivers
Another bump, did about 220km yesterday from a full tank, fairly high altitude if that matters (Guyra/Armidale) and used 14L exactly... 100-110km/h the whole way
On my mates bike I would usually get 200 to 220kms before reserve with mostly city riding and alot of high rpm. It is also running quite rich at idle but that`s just my laziness in not bothing to turn the pilot screws in haha