My streamliner of 1980 is on display at the AMA Hall of Fame Museum in Ohio:
Craig Vetter high mileage fuel economy motorcycle
In the era of 55 mpg, it actually got 108 mpg. in my 1982 contest. It would have cooked its air cooled engine at today's 70, into a 30 mph headwind. It was pretty good but awkward to get on. For me, anyway. Ever since a horrible get-off at Road Atlanta on my RD350 in 1976, I have had a hip problem making it hard to throw my leg over anything high. Anyway, I have found that I just need a scooter configuration. Just sit and ride.
If you are referring to the current Helix, I ride it... refine it... refine it, etc.