My 2012 Weestrom (DL650X) is averaging 65 mpg with a confirmed high of 77 (next tank did 67, so it wasn't a bad reading). The Glee (Gladius engine) is supposed to be fractionally more efficient. I'm riding a mixture of motorway commutes restricted to 50-55 by tax cameras and UK/West European back roads. Tank range is practically about 280 as while the theory says 320 the flashing light joins the voices in your head and you go fill up with 18 litres not the full 22. I have nailed it half the length of the M62, fully loaded at illegal speeds and still couldn't get it to drop below 60 to the gallon. People getting 55 mpg aren't changing up soon enough IMHO.

I had a carbed F650 single and could get high 60's to low 80's mpg out of it. On the one tank BMW let me put through an F800 I got 76 mpg. Maybe I'm just a tight Yorkshireman but I wouldn't let the numbers put you off either way. All the modern 5-800's are way better than the 30-40 figures people are still reporting from 1000cc Vee's and the like.

47 HP is perfectly sufficient for two up and luggage. You only need the Wee's 67 for lazy gearchanges and breaking the speed limits. Having the option to autobahn cruise maybe does make the Wee/Glee superior? Wouldn't be a feature I'd really look for though.

TCK80's are decent all purpose rubber if memory serves. I last used them in about 2003-4 though.

Pity your ride got cancelled, I think this bike is a contender and wanted to hear how it went.

Andy