Celebrating the legacy for cycling created by the London 2012 Olympic and Paralympic Games, the Prudential RideLondon 100 amateur event starts at the Queen Elizabeth Olympic Park in east London and then follows a 100-mile route on closed roads through the capital and into Surrey's countryside.
With leg-testing climbs and a route made famous by the world's best cyclists at the Olympic Games, it's a truly spectacular event for all involved.
But there are some strict rules on which bicycles will be allowed in the race on Sunday August 2.
Organisers have provided the following guidance:
- Single-speed (both fixed and freewheel) bicycles are allowed as long as they have suitable brakes
- Mountain bikes are allowed – although please use slick tyres to conserve energy
- There will be 100 tandems and 50 tricycles allowed this year. Preference will be given to riders with a disability. If you are a visually impaired or disabled rider and have been accepted via the ballot, you must contact firstname.lastname@example.org in order to process your entry. For tandems, only one rider needs to have been successful in the ballot. Entrants with a disability will be charged £58 – entrants where neither rider has a disability will be charged for both riders at a total cost of £116
- Folding bicycles
Bicycles not permitted:
- Fixed wheel with no brakes
- Fixed wheel with only a front brake
- Any bicycle with only one brake
- Penny Farthings
- Towed trailers
- Child carriers
- Tag-a-long trailers bicycles
- Trailer bicycles
- Cargo bicycles
- Specialist time-trial bicycles are not allowed as they do not allow for immediate control of the bicycle
- Recumbents with full fairing
- Any bicycle without 360° rider visibility
- Unconventional handlebars (including triathlon bars, aero bars, clip-ons, prayer bars, Spinaci bars and cow bars) are not allowed
- Handlebars without bar-end plugs are not permitted
- Electric bicycles are not permitted but are welcome to take part in the Prudential RideLondon FreeCycle in the capital on Saturday August 1
Check out our guide to what's going on and when so you can plan what to watch!