Ballots for the Brompton World Championships held in London the day before RideLondon (3rd August) are now open! It's essentially a Criterium with a standing start - entrants run to their bike, unfold it before taking 8 laps of a 2km Circuit - there's a formal dress code meaning strictly no lycra.
Organisers allow a wide range of abilities so don't think you need to be Peter Sagan to enter!