I hadn't seen this before, I'll be surprised if I'm the first to post, they seem to be spamming the local Craigslist.

https://www.evolvebicycles.com/

Calfee does it too... https://www.calfeedesign.com/bamboo.htm

Hadn't seen that either, the evolve ones are considerably cheaper, ( not cheap, cheaper. ) but don't look anything like as nicely finished.

the calfee has to have the exact sizes of bamboo to fit in the sockets. that would really limit the material used. a little uglier but far more flexible may be the way to go. but I bet the bamboo would give a pretty smooth ride.

For that price I will stick with steel.

Calfee forms the hemp fiber lugs around the bamboo tubing.

I saw one of those on Gilligan's Island once.

I think they still make fly rods out of split cane bamboo but that is a whole bunch more sophisticated then the bike shown. Bamboo has quite a few of the characteristics of graphite. But since it is so labor intensive to make, it is far more expensive. They used to make bicycle wheel rims from wood and those worked well but were also labor intensive.

Wow. Major sticker shock looking at those...

While bamboo is very strong & light making it great as a tube, it isn't so great as something you have to join, especially if you want to make it strong using a small joint.

I wonder how far the lugs go inside the bamboo?

There aren't many bikes I would call unattractive but now I think I have seen one. The concept seems just a bit too primitive to me. But more power to anyone that would rather have one than a CF bike at that price.