Simplicity/fuel efficiency bike capable of 100kph available in NZ

[AlpinePossum]

I have a love of efficiency and simplicity.

I love my Suzi DR650... but she isn't simple or terribly efficient.

So in the category idle silly season speckled-u-lation I'm wondering...

* Which is the simplist motorbike bike capable of cruising at 100kph available in NZ?

Alternatively..

* Which is the most fuel efficient motorbike capable of 100kph available in NZ?

I have a funny feeling both questions will be answered by "classic/vintage bikers"...

[vindy500]

the hobag 250s are meant to get ~350 400 km's from there tank which seems decent to me

[Slyer]

Air cooled singles are the most simple, especially 2 strokes.
GN250 is one of the most simple otherwise.

[paddy]

. . . Which is the most fuel efficient motorbike capable of 100kph available in NZ? . . .

My DR250 does around 3 L / 100 KM. It's fairly simple as an oilcooled machine to. Does 100 KM/H but probably not as comfortably as your 650.

[Oakie]

the hobag 250s are meant to get ~350 400 km's from there tank which seems decent to me

That is meaningless without knowing the size of the tank. I could probably squeeze 380km out of a tank on my Bandit and that's only at 19km/l

[rok-the-boat]

My DR500 does 25km/l and will cruise at 100kph easily (4l per 100km if you are no good at math), especially now that I have fitted a much bigger front sprocket for the road - 16 tooth. 100kph is 4500 rpm, its sweet spot is 4000 = 90kph or so. And it is still not high geared - it will surge ahead when opening the throttle at 100.

[grbaker]

BMW F650GS pre-2007 or G650GS (single) 17.3L tank will go about 400+ kms, fairly simple.
Suzuki DL650 22L tank - good for 400+ kms, not extactly simple.

Neither are off roaders but I have seen the F650GS used for such with the right rubber.

[Mully]

Scorpi-orpi-orpi-orpio use sod-all go juice