The last stage of the Tour of Britain takes place this Saturday (19 September) in London and you can ride 18km of the route with professional riders and celebrity cycling fans.
The Prostate Cancer Charity is giving 1,000 cyclists the chance to ride with the likes of Tour de France star Mark Cavendish, actor Damien Lewis and former Liberty X singer Michelle Heaton.
Cavendish said: “My success at Tour de France was unbelievable but riding the final leg of The Tour of Britain, in the capital, with the public would be an honour.
“Cycling through London with the pros on an official race course will be an unbelievable experience and I want to encourage as many people as possible to register for The London Ride, while fundraising for a vital cause.”
The ride, which will be televised on ITV4 as part of their Tour of Britain coverage, follows the official route of the final leg of The Tour of Britain, which starts at 2pm on Saturday.
The circuit starts on WestminsterBridge and takes in Big Ben, Whitehall, the Tower of London and the London Eye. Entry is £50. To register, go to the UniteByCycling website.