Basically, we meet, ride around, no leader, no route, asserting ourselves as traffic en mass, the more riders there are then the mass becomes 'critical' ie a big enough group to prevent traffic from breaking us up....
It's a nice paced ride, you meet lots of local cyclists and can have a cheeky beer aferwards.
Use google/wiki before asking things on here, otherwise people (not me) will shoot you down!
http://en.wikipedia.org/wiki/Critical_Mass
Basically, we meet, ride around, no leader, no route, asserting ourselves as traffic en mass, the more riders there are then the mass becomes 'critical' ie a big enough group to prevent traffic from breaking us up....
It's a nice paced ride, you meet lots of local cyclists and can have a cheeky beer aferwards.