Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

xerocracy in action, old school vibes. How it used to be done! before the internet, there was IRLO - in real life only #criticalmasslondon #criticalmass #londoncriticalmass #londoncycling #flyers #posters #leaflets #zines #xerocracy #archive #ephemera #maydayrooms

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

This Thursday 4th December, 7pm at Mayday Rooms, 88 Fleet Street Come listen to Des Kay and other CM OGs from previous decades reflect on 20 years since the Law Lords judgment protecting Critical Mass London's freedom of assembly Event starts at 7:30. Duration 60-90 mins. BYO. Entry is free, donations for Mayday Rooms welcomed. Drinks nearby afterwards.

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

Check Pinned Post For More Information and frequently asked questions. Every last Friday of the month, hundreds of cyclists gather on the South Bank under Waterloo Bridge (by the BFI/National Theatre) to meet at 19:00, with average departure around 19:30. No leaders, no fixed route, just a massive, joyful celebration of bikes claiming the streets. #CriticalMass #CriticalMassLondon #LondonCycling #CyclingEvent #BicycleRide #london

28th November 2025 The Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a monthly bike ride on the last Friday in over 300 cities, started in 1992 and in London in 1994, to highlight bike-unfriendly cities. With no formal leadership, cyclists meet at a set time and place to ride together.

Critical Mass London October Ride Recap, join us again on the 28th November 2025. Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a bicycling event typically held on the last Friday of every month in over 300 cities around the world.

CRITICAL MASS 28/11/25 BFI SOUTHBANK 19.00 Depart 19.30 #criticalmass #rideoutinlondon #bike #ride #fyp #fypシ #london #soundsystem

Please join us for a warming winter welcome to Des Kay to reflect on Critical Mass London's history! It is the 20th anniversary of when the London Metropolitan Police tried to shut down Critical Mass. Long time cycling advocate and CM participant Des Kay, with help from the Friends of the Earth, contested the decision. The appeal went all the way to the Law Lords, and ultimately was successful - ensuring the survival of Critical Mass and paving the way for the freedom that current riders enjoy today.

A decent crowd for a dark and wet evening of about five to six hundred assembled on the south bank, and left at 19:30. Within thirty seconds of the ride leaving, the heavens opened up, and a quarter of the … Continue reading →

A fireside chat with Des Kay - Thursday 4th December 2025. Doors open 7pm. Please join us for a warming winter welcome to Des Kay, to reflect on Critical Mass London's history, in collaboration with MayDay Rooms. It is the 20th anniversary of when the London Metropolitan Police tried to shut down Critical Mass. Long time cycling advocate and CM participant Des Kay, with help from the Friends of the Earth, contested the decision.

31st October 2025 The Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a monthly bike ride on the last Friday in over 300 cities, started in 1992 and in London in 1994, to highlight bike-unfriendly cities. With no formal leadership, cyclists meet at a set time and place to ride together.

31st Oct @critical_mass_london. Got soaked from the rain 🛞 #nightride #criticalmass #rideout #electricunicycle

Halloween has reached critical mass 🦺🛑🚨

The Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a monthly bike ride on the last Friday in over 300 cities, started in 1992 and in London in 1994, to highlight bike-unfriendly cities. With no formal leadership, cyclists meet at a set time and place to ride together.

The Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a monthly bike ride on the last Friday in over 300 cities, started in 1992 and in London in 1994, to highlight bike-unfriendly cities. With no formal leadership, cyclists meet at a set time and place to ride together.

The Last Friday of every month, 19:00, Southbank under Waterloo Bridge. Avg. departure 19:30. Check Pinned Post For More Information and frequently asked questions. Critical Mass is a monthly bike ride on the last Friday in over 300 cities, started in 1992 and in London in 1994, to highlight bike-unfriendly cities. With no formal leadership, cyclists meet at a set time and place to ride together.