A cyclist passes a newly installed line of bike bays near Battersea Power Station in west London July 29, 2010. A fleet of 6,000 bicycles for hire will hit the streets of central London on Friday when the city's mayor Boris Johnson launches a scheme intended to fuel a cycling revolution in the congested capital. The initiative, which follows similar projects in cities including Paris and Montreal, aims to ease overcrowding on London's commuter network, with 400 bicycle "docking stations" from Notting Hill in the west to the Tower of London in the east. REUTERS/Toby Melville (BRITAIN - Tags: SOCIETY ENVIRONMENT)