Virgin Vacations lists Boulder as one of the 11 Most Bike Friendly Cities in the World. How cool is that? I already knew that the bike commuting opportunities and infrastructure in Boulder were top-class... to the point that I have a better sense of getting around Boulder on my bike than in the family car.
Another great reason to live in Martin Acres is the easy access to the Boulder Bike Path network. See a limited Google Map of the bike network here. It is complete for Martin Acres, but not so complete for areas further away.