I just registered for this event... Commerce Bank Bike Philly.... they shut down all the streets, looks fun to me, a chance to ride around center city and see the sights without all the traffic. SHould also be a bit of a challenge as I haven't ridden in about 10 years (and I'm 21 ) and I've never ridden 20 miles before. I've got my work cut out for me.

http://bikephilly.onefireplace.org/D...?pageId=170265