Hundreds of cyclists campaigning to make the streets safer are protesting on the South Bank tonight.
The protest comes on the day MPs are debating the issue of bike safety.
Luke Hanrahan assesses what has already been done, and whether it is working.
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His top speed is believed to be the highest ever recorded in the UK by a rider carrying a pillion passenger.
The mayor took time out from City Hall to join Conservative party workers handing out leaflets in Uxbridge and South Ruislip.
No matter where you look, London's population is getting older - with the exception of one of the capital's boroughs.