Who's the most cycling-friendly London mayoral candidate?

We put Tory, Labour, Lib Dem, Green and Ukip candidates to the test, to see what London's next potential mayor will do for cycling in the capital

In exactly three weeks' time, London voters will be electing a new mayor to replace Boris Johnson. Despite the prominence of the job there are relatively few areas in which the mayor can enact real change. Transport, however, is one of them - not least through cycling.

Whatever you think of Johnson's overall record, he has ended his eight years as perhaps the most obviously pro-cycling mainstream politician in the UK.