What's the verdicts on hub-less circle bicycle wheels? Sturdy and "maintenance-free"?
Verdict seems to be 'this is a scam'
Cyclotron is a scam https://cyclotronscam.boards.net/board/1/general-discussion
Reevo is suspiciously similar
https://www.reddit.com/r/shittykickstarters/comments/ivk95y/reevo_hubless_ebike_anyone_know_anything_about/
Comments on there about sum it up: looks good to the gullible on Facebook/Kickstarter, in reality is much worse than existing solutions. Hubs &amp; spokes work just great, spokes are fantastic things in that they are each in tension making the wheel strong and repairable.
https://www.cyclist.co.uk/in-depth/85/the-science-behind-spokes
The 'advantage' here seems to be 'not having basic physics on my side, but looks cool'.
One such bike was made an art school product; I suggest that is as far as this will get
https://www.flickr.com/photos/laulaulau3/31994357/sizes/o/
Until these things are actually available and in people's hands, it's best to work on the basis that this is either an outright fraud, or at best will be a terrible piece of junk that works incredibly poorly.
I'm not going to hold my breath to see if my instincts are wrong. But I'm glad you posted this, because I saw these on Facebook and immediately thought 'lol, scam', and now I've done 10 minutes research I'm feeling pretty much confirmed about my theory. But then I am a very cynical person, so.
There is a bit on hubless wheels in general here: https://en.wikipedia.org/wiki/Centreless_wheel  Essentially they are a problem looking for a solution
Edit: I had a look at the technical names given here: https://www.indiegogo.com/projects/reevo-the-hubless-e-bike#/
CEO might have relevant experience https://www.linkedin.com/in/alec-lim-6877821b7/ but it doesn't appear to relate to bicycles or motor vehicles, maybe only robotics
Lead engineer seems to work on microchips in Italy https://www.linkedin.com/in/andrea-stona-87984739/
CTO seems to work for Osram as his day job on lighting, connected lightbulbs, etc. https://www.linkedin.com/in/chewivan/
I get the impression there are a few software people there; how much work they are doing is not clear, but there doesn't seem to be much if anything in the way of 'people who could reinvent the wheel'