New Jersey start-up Sol Cycles has designed a high-performance bike frame made of bamboo, a rapidly renewable resource. Bamboo grows fast, sequesters carbon, and doesn't die when cut, so the same trees can be harvested multiple times. The bike frames, as a result, have a negative carbon footprint. The company claims its $2,000 bikes outperform $6,000 carbon fiber models, in part because bamboo does a better job of dampening high-frequency vibrations.
For more information on bamboo bicycles visit Sol Cycles' website.