Cycling is a great way to reduce pollution, stay fit, and travel. But long distances and steep hills often impede on people’s desire to cycle. <br /> <br />The brand new Copenhagen Wheel changes all that. <br /> <br />Instead of requiring the purchase of an expensive hybrid-electric bicycle, the new Copenhagen Wheel simply replaces the rear wheel of your bike. <br /> <br />Just run the special app on your smartphone, and the small battery housed in the wheel saves energy when you are coasting or braking, and gives you a boost of power with its tiny motor when you are travelling uphill.
