One of Ireland busiest roundabouts was closed off by Gardai for a short period to allow for this fantastic cycle flash mob. Although the meaning of the clown theme is open to interpretation. Maybe they are referring to the clownish manner of the design of some of the cycle lanes around the city or maybe the message was "don't be a clown get out of your cars onto your bike!".

Either way I'm so happy that the authorities agreed to such an event and looking at the video at least some of the motorists seemed happy about it.