The theory was that the giant rear wheel would act like a flywheel and help maintain momentum on the track. Another classic of the genre was this Cinelli Laser. And Graeme Obree's homemade bike, 'Old ...

Iceland has no shortage of natural dangers – volcanic eruptions, glacial floods, scaldingly hot springs and bitterly cold winters. But it is at least one of the few places on Earth where humans don't ...