More than half of 1 percent of American workers commute by bicycle. That may seem like a small number, but it is growing fast and the potential is huge. A survey completed by the Bureau of Transportation Statistics in 2000 found that 41.3 million Americans use a bicycle for transportation, and every year more commuters are opting out of driving to work and opting into cycling. The United States’ 70 largest cities have seen the largest percentage of growth in bikers, with a 63 percent growth in new bike commuters from 2000 to 2010. Not only does commuting by bicycle save money by not having to rely on gas-powered vehicles, it is also a zero emission form of transportation that is easily accessible to people of all fitness and socio-economic levels. Bicycles cost far less than a car or truck, and other than a good helmet and periodic maintenance, bikes do not incur additional expenses after the initial purchase price.