Share 'Anyone doing the Urban Assault Ride this sunday?'

We're doing the ride on tandem and we're getting ready for it. Seems like a lot of fun from the website and you tube videos plus its New belgium. They know how to party.. Just wondering if anyone has any idea how many people will be participating http://www.thechainlink.org/events/new-belgium-brewing-urban http://www.urbanassaultride.com/inside.php?page=chicago