Throughout the United States, more cities are providing increased bicycle services. Whether it be a bike-sharing or rental system, these options have gained traction among those who want to get around without driving a car or taking public transportation. It’s good for the environment and a great form of exercise, but it can be limited by uneven pavement, hills and large curbs.

Despite these pitfalls, city dwellers still want to use bikes as a way to get around. Superpedestrian, a startup based out of Boston thinks it has the answer for some of the limitations of bike use in a city.  Their solution is a bike that looks similar to a standard bike, but the back wheel is equipped with a motor that stores power whenever the two-wheeler is going downhill or pedaling backward, according to the New York Times.

“If you think about today’s cities, they have been developed for the scale of the automobile, with people being required to travel great distances that are quiet large,” Assaf Biderman, founder of Superpedestrian told the Times. “Most cities are built around topographies that require motorized transport and it can make cycling and walking very difficult.”

How does this back wheel help a cyclist navigate through the many different types of terrain found within a city? Powered with a built-in lithium battery and sensors, the bike syncs up to a mobile application to calculate “the amount of effort the rider is putting into each pedal,” from there it outputs additional energy in the wheel to move the rider along.

Those who are looking into reducing their carbon footprint can look into many different alternatives.  Used office furniture liquidators for example, offer lightly-used furniture pieces for a fraction of the cost of retail value. Companies in the Bay Area who consider this option will be reducing overall waste, while improving the bottom line.