I have been noticing the Bikes are Beautiful posters scattered around town and finally checked out their website.
The event celebrates bike culture and sounds like a lot of fun. There will be silk screening of cool bike positive patches (just bring your own fabric), Bike films and DJs. They also note:
Bikes are not mandatory but spontaneous parading up and down Ballard Avenue is encouraged.
I will sadly be out of town, but all of you should go so we all can celebrate bike culture all of the time!