On the weekend, the 2011 Singlespeed Cyclocross World Championships took place in San Francisco’s Golden Gate Park. Jason Perry was on site and documented the cyclocross action in his 2011 SSCXWC set for all of us to see.

Photos from Jason Perry Photo.

Posted By
Kay Kremerskothen

Kay is a Community Manager for Flickr and passionate about extraordinary photography. As an editor on Flickr Blog he loves to showcase the beauty and diversity of Flickr in his posts. When he's not blogging or making Flickr more awesome (in front of and behind the scenes), you can find him taking pictures with his beloved Nikon and iPhone, listening to Hans Zimmer's music or playing board games. | On Flickr you can find him at