Critical Mass achieved its international name following the first ever ride in San Francisco back in 1992, where it was christened ‘Commute Clot’. It was then “noted that, in China both motorists and bicyclists had an understood method of negotiating intersections without signals. Traffic would “bunch up” at these intersections until the back log reached a “critical mass” at which point that mass would move through the intersection”.

last Friday of every month meet 5.30pm outside guildhall. ride for 1h and then a quick pint somewhere. Check the Facebook Group for more details.