Matthias Broda, inventor and designer of the wooden e-bike, cycles a prototype along a street in Berlin, November 20, 2014. The wooden e-bike produced by German company Aceteam from ash wood, will be launched on the market by spring 2015 and will cost around 3,950 euro (4,950 dollars). The e-bike will be equipped with an 250W e-bike motor for a range of up to 100 kilometer (62 miles) with a rechargeable battery. (Photo by Fabrizio Bensch/Reuters)

The surface of the a prototype of a wooden e-bike is pictured at a workshop in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

The e-bike motor of the prototyp of a wooden e-bike is pictured in a street in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

Matthias Broda, inventor and designer of the wooden e-bike, holds the handlebars of a prototype on a street in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

Matthias Broda, inventor and designer of the wooden e-bike, cycles a prototype along a street in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

The seat at a prototype of a wooden e-bike is pictured at a workshop in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

Matthias Broda, inventor and designer of the wooden e-bike, holds a prototype on a street in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

Matthias Broda, inventor and designer of the wooden e-bike, sits on a prototype at a street in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)

Moritz Sanne fixes a prototype of a wooden e-bike on a special mounting at a workshop in Berlin, November 20, 2014. (Photo by Fabrizio Bensch/Reuters)