Spring is finally came and many of us are having ideas for it. We are spending a lot more time outdoors, enjoying barbecue with our family or only having some beer. But for those, who better like to be more active in this season of year, the greatest idea would be riding on the bike, we can use it as our vehicle of transportation to our work or college. Mainly, if we want to loose some extra kilograms, which we gained last winter. You don't have your own bike? You must to get one! You can buy used one or try new application to design custom bicycles.