An ecological extra help for biking!

Biking has many benefits not only for the environment, but also for your health. But for a lot of people biking becomes a  challenge for the amount of energy needed to do it, especially in roads that are not designed for it.For this reason, some researchers from MIT, developed a device called “The Copenhagen Wheel” , that conserves the energy that you already spent, and uses it when you need it most. The result: Hills become flat!!
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