Britain is experiencing a two-wheeled revolution. Folding bikes, e-bikes, tricycles, recumbents, fixies, cargo bikes, bamboo bikes - the bicycle is being reinvented and demand is so great that many manufacturers are struggling to keep up. Amid burgeoning sales of bicycles and accessories, are we witnessing a genuine cultural shift towards two wheels or will this turn out to be just another fad? Peter Day meets some of the businesses and innovators hoping pedal power is here to stay.
Producer: Ben Crighton.