Since spring has arrived, we have far more power for everyday activities. We are doing overhauls in our houses, rearranging the garden, sometimes even going for a short trip to the mountain. But the most people begin to exercising. They are going to the gym, practicing Yoga, having great fun on the mini golf. If you do not have to many time for any stuff like that, but you still like to get in shape, you need to begin to ride a bicycle. But not normal one - so design your own bike!