The Copenhagen Wheel, announced at the 2009 Copenhagen Conference on Climate Change and initially developed in an MIT lab as a research project, contains a motor that transforms a normal bike into a hybrid electric vehicle. The device consists of a motor and battery pack that snaps onto the back of the bike. As you pedal, the wheel captures excess energy when going downhill or braking and then helps propel you up steeper inclines or harder terrains.
The wheel can also connect to the Internet, using it to record speed and distance traveled, find friends throughout the city, inspect air quality and even notify you if the bike starts to move when you’re not in the seat. In the mood to use up more calories? Using your smartphone, you can also vary the level of powered assist.
This reinvented wheel, listed for $799, is available for pre-order and will be out by the end of this year.