Four-time trial world champion Adam Raga wanted to make some noise to celebrate International Noise Awareness Day, so he swapped his roaring trial bike for an electric bike -- and rode off to the beautiful Valley of Silence in El Bierzo in northern Spain. Why? Because Adam believes living in peace with nature is something to shout about. He really believes that this is the path that technology must follow; to always try and coexist with the environment.