The bike is back among middle-class Londoners. At dinner parties, conversation has turned from the question of whether to cycle to whether cyclists should obey the rules of the road, such as stopping at red lights, and to grumbling about the growing shortage of spaces at central London's crowded bike parking racks.

Tomorrow is the last day of Bike Week, a government-backed series of media events designed to promote the benefits of cycling. In the capital people appear to have got the message.