Critical Mass London
London, United Kingdom · South Bank · Critical Mass · Social
- When
- Last Friday of the month, 7:30 pm local timeYear-round
- Starts at
- South Bank, under Waterloo Bridge (by the BFI / National Theatre) Map ↗
- Pace
- Slow, leaderless mass rideNo-drop: nobody gets left
- Hosted by
- Critical Mass London (no organiser)Community-run
- Cost
- free
- Kind of ride
- SocialCritical Mass
For visitors
No sign-up, no leader, no set route. Any bike. Lights after dark.
First time on this ride? Here’s the drill
- Bring
- a helmet, front and rear lights (it's a dark-hours ride), water, a spare tube or patch kit, a way to pay for the stop.
- Arrive
- Ten or fifteen minutes before the meet time. Tell whoever's leading that you're new.
- Pace
- Slow, leaderless mass ride. It's no-drop: if you fall off the back, someone waits. That's the point of a group ride.
- Check
- Look at @critical_mass_london the day of — that's where cancellations, weather calls and start changes get posted.
First group ride? Start here →
About the Critical Mass London group ride
Critical Mass London is a Critical Mass ride in London, United Kingdom. It rolls last Friday of the month at 7:30 pm local time from South Bank, under Waterloo Bridge (by the BFI / National Theatre).
London's monthly Critical Mass: riders gather under Waterloo Bridge on the South Bank on the last Friday of the month and ride through central London together, with no set route and no leader. Any bike. It is a crowd, so expect a slow pace and a long evening.
Where to find them
Checked Oct 1, 2026 against source 1, source 2, source 3. Schedules change. Confirm with the host before you go.