270 miles to a tank ....Is it possible ?

[stevierst]

Why don't you put it properly to the test Dazza. Carry a gallon of fuel with you in your top box and run her as far as you dare, or even to dry.

I do fuel consumption tests quite often on my bikes. I got 48mpg out of the GenII once, 73mpg out of my last boxeye, and 75mpg out of the Thundercat!!!! I can't keep that riding up for long, as it bores me almost to tears.
I generally keep the speed below 55mph, roll completely off the gas as often as possible, and feather the throttle permanently. If you have to start/stop, set off in first, straight to third, then into top. That all together saves a bit of fuel, it really does work.

I recon you could almost hit 300 mile mark if you went to dry tank. Good luck with the test, and may the gods of boredom stay away from your door!