Interesting post, and thought provoking
I think you are mostly right on this one. Steel bikes are still being made as well as Titanium and Aluminum but it seems like in general a new material does have a limit as far as being the mainstream one.
Wow, that's a new one. Sounds interesting. However, with a feudalistic organization controlling road cycling like the UCI and their opposition to innovation, it may well be 20 years or more before they lower the weight limit to not only allow these new materials but other bike geometries as well
Right. Also, since CF manufacture appears to incur so much waste, the odds are against it to remain the dominant choice.
Yes, bamboo is certainly the greenest option -the Calfee way, but you can't make a bike frame of 100% bamboo, the bottom bracket and other parts are still traditional steel or other. Moreover, bamboo would only lend itself to tubular types (traditional). I'd tend to think that the future of cycling will be more practically-based than we can currently imagine. And by that I mean bikes for the purpose of mass transportation, as a replacement to cars, etc, rather than an exercise tool. These bikes would be more like the ones in this video:
http://www.youtube.com/watch?v=5V2FgwN_re4
But anyway, it is nice to think about the future of cycling. We can dream, right?