That is awesome, in the US this would be illegal to drive on roads, sidewalks or most any public land. WOW super awesome, I could make this and drive up and down my drive way. Totally worth it.

I am unsure of what portion Michael is from but where I live it is legal. 3 wheels or less and under 100 lbs and its classified as a bicycle. Add power under 49ccs or 1500W and your an unlicensed moped.

Love it! I'm getting excited already, just have to get the materials sourced and we're away!
Thanks to all at N55... :-)

Aluminum is not three times the strength of steel and many if not all of the high strength aluminum alloys don't do the self coating thing.

In most of Europe this would be classified as a bicycle. If you use a rear wheel with an electric motor, than the requirements is max 250W, no assist above 20 km/h, and the pedals have to be moving to get power assist.
I really did like the simplicity and the use of standard parts. Also that the chain and drive system is kept away from the driver. The cargo system would also be interesting, seems it should be able to carry a good load. The seat seems to be more stylistic than practical, unless there is some kind of moulded seat you are likely to skid around a bit. I would also think that the version with a short wheelbase migh be a bit nervous on the road, though that might be an advantage in cities. Fully equipped I think it will be difficult to come very much below 50 pounds on this bike. Just the bolts should be a couple of pounds...
Still, this is one of the most "buildable" designs I have seen so far...

This is astonishingly bad structural engineering. Bucky Fuller spins in his grave at the effrontery of calling this "space frame". Instead of using the natural strength of triangulation, this configuration depends on the strength of the bolts and joints for whatever feeble rigidity it has. Check out some real recumbents like Rans or Easy Racers for efficient use of materials.

What a crock! A proper space frame is fully triangulated. Structurally, this is just a mess. However, all aluminum alloys do develop a tight oxide layer, rather than flaky rust.

Bill Allison, the lifelong suspension engineer who perfected the wind engine achieving a 59% efficiency in his retirement was extremely inventive. He held some 80+ patents on suspension designs and he developed the Packard Torsion Ride which Jay Leno extolled with his Packard Caribbean.
When I told him that I loved the design of the Mog he quickly winced and said no-no! 3 wheeled vehicles are exceedingly dangerous. This proved to be true in the Progressive insurance Automotive X-prize. Watching one of the vehicles spin a 180 on the breaking test was scary as hell to one who understood what Bill Was saying.
He also in his retirement perfected suspension designs saying that it was a shame that he had not discovered the truth earlier. And he did this with a very simple test that an intelligent child could perform.
He simply used a board and made an inclined plane. He then built 3 exquisite models that really belong in the Henry Ford Museum. One was a 4 wheeled configuration, one 6, and one 8. Simply placing them on the inclined plane and letting them roll revealed that the 8 wheeled vehicle rolled much farther than the others. And yes, the 6 wheeled vehicle rolled farther than the 4 wheeled vehicle. Bill would look at you and smile and say the 8 wheeled vehicle has a much lower rolling resistance by a factor of 4.
Think about the common rail car. It has 8 wheels in bogied pairs. Believe it or not, it has that configuration for one reason only... much lower rolling resistance.
Bill's design was clever, Yes there were 4 bogied pairs and there were two walking beams connected at the center as a hinge. The springs were traverse at each end.
When The team from Keio University brought their 19 passenger car to the NAIAS they indicated that it was tested at 200mph and it had 8 wheels, the suspension was hydraulic but configured the same way Bill did his. The ELIICA is a more normal automobile with 8 wheels and it's outstanding performance is attributed in part by the low rolling resistance configuration.
It is time that we disabuse ourselves of thinking that less wheels provides a lower rolling resistance as Bill Pointed out. Sir Alex Moulton mentioned to me that as a youngster he was delighted to play with a Packard and ride it up and down with his friends as it self leveled.
Insightfully Innovative engineers are a thrill to behold.
And I'd bet that the Danish Engineers could come up with a design like Bill's that would delightfully surprise even them.
Bill Dickens

Will someone please re-set the Way-Back machine to Oregon in the 1990s; then a later trip to California in 2007? Thank you.

At least it's free. Spaceframe? LOL Well, you do get what you pay for!