Two Wheeled Takeover

When out in the centre of London on Friday, we suddenly found ourselves outnumbered by bicycles. Some had big speakers on trailers, some were shouting and some were on skateboards (clearly, didn't get the memo). I've been trying to work out what the heck it was, as there were hundreds of bike riding through on mass. I have heard of Reclaim the Streets, so could have been a version of this. Whatever it was, it was pretty impressive, and entertaining when one particular car driver decided they weren't too keen on this whole critical mass of cyclists. Needless to say he was outnumbered and admitted defeat.