The Cycle Show starts Thursday for pre-registered members of the bike trade and the press. The show takes place at Earls Court.
Friday through to Sunday is when the celebs will be wandering the show, from David Millar to Shanaze Reade. There's a full list here.
9 to 11-year-olds will have the opportunity to learn about the benefits of cycling for their health, the environment and the community.
The show is ten percent bigger than last year, with an expanded list of exhibitors, including all of the major players in the UK bike industry.