Boulder is already the third-most bike-friendly community in the U.S., with 20 times more residents commuting by bike than anywhere else in the nation. The region also offers any number of ways to take biking to the next level of sustainability, and make an already eco-friendly activity even less harmful to the environment.

In this news piece, we explore three ways to take cycling to the next level of sustainability: bikes made from bamboo (arguably the most sustainable building material on Earth), the Boulder B-Cycle bike-share program, and Boulder's well-known Community Cycles, a non-profit that recycles, rebuilds, sells and donates thousands of bikes every year.

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