New Concepts

The temptation to give bicycles a new style have also reached transportation designers. The idea of round corners has come out and new bikes have emerged. 
Some super modern concepts are beautiful but also a challende to the rider. 

Source: http://www.fuelyourcreativity.com/modern-bicycle-concepts-that-will-blow-your-mind/

More Bike Concepts

Source: http://www.incrediblethings.com/lists/cool-concept-bikes/