I thought there was a site with online tutorial on this? Or maybe it is a site with online info on a carbon bike. Not sure this is all that "green" You need to make most of the bike out of other very ripe technologies, and just splice in the bamboo mid span where the higher end tubes in steel might be paper thin.

I like bamboo and make bike fenders, bows and flyrods out of it, all applications where it plays the major role.

This bike uses quite a bit of wood though I can't say as to weight looks a little heavy:

http://www.planenco.com.br/gota/indexe.htm

And:

http://www.blids.nl/gallery/Plywood-...-workshop-2003

Or:

http://www.woodenbikes.com/