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Thanks, but I already know the general fuel economy of the single cylinder. The link you posted is for the twin cylinder detuned 800cc motor that BMW calls the F650 now. Thanks to BMW for being confusing.
I'm more interested in the g/HP or g/kW chart to compare the thumper motor against other small gas or diesel motor. As it sits it looks the best motorcycle stock for carrying lots of stuff at highway speeds which is just a generalization. Almost 74mpg at the Vetter challenge conditions, 54 at beyond highway speeds. Both with 4 days worth of camping gear. I'd love to compare a CBR250 loaded the same, riding the same.
My cashflow and free time demand I figure as much out on paper before I blindly build something.
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