Many of us cycle to work every day and judging by the amount of sweat stuck to our shirts by the time we get to work, it’s easy to imagine that we’ve been using a lot of energy. Why not harness that energy and use it to juice your beloved devices too? That’s what the Re:energy concept bike attempts to do, allowing you to juice an internal battery on the bike as you cycle. With that in place, if your gadget is ever running low on juice, all you’ll need to do is to hook up the charger to the power socket location on the wheel to recharge it. Of course, the location of the power socket might be better if it were on the body of the bike itself, since the current design obviously means you can’t safely cycle and recharge your device at the same time, since the charging cable would be hanging precariously to the side.