When spring has came, we have much more power for everyday activities. We are doing renovations in our houses, rearranging the garden, sometimes also going for a short trip to the Paris. But the most humans begin to exercising. They're going to the swimming pool, practicing Pilates, having nice fun on the mini golf. When you don't have to many time for any stuff like that, but you still want to stay in shape, you need to start to ride a bicycle. But not regular one - you have to design your own bike!