[hermitdev]

I was surprised at the number of drawings that connected the front & rear wheels directly. I'm sure those would be fun to ride...

Also the number of bikes that were just structurally unsound, such as just the seat-stay attached to the rear wheel. Quite likely first bump you hit, things would not end well (if it even took that long). I'm not a mechanical engineer, but I did take a single class on statics in college, and that's enough for me to see that things would not end well (at least with current materials I'm aware of).

[okmokmz]

Agreed, some of the frames were surprising and quite funny. I've never ridden a bike professionally, or even as a serious hobby, but I would've guessed that way more people would at least get the general frame shape of a rhombus with 2 connected corners and the fork coming down from the front edge.

[gameswithgo]

real bikes exist with just a seat stay, and with just a chain stay, and they work fine.

of course the stays are beefed up in these cases.