So here's the deal- A good friend from college is getting married. Among all my college buddies, we've done all the crazy vegas trips, strip clubs and all that. For this guy, we were looking to do something a little different. We're going to be in Boulder in August for a few days, doing various bachlor party crazyness, but we've got one day open. Some one had brought up riding and that would be awesome... if I knew a good place in boulder to ride and a good place where a bunch of guys can rent a decent bike. Since we don't really know the trails over there, it would be even better if there was anything like what's setup in Downieville where there's a shuttle service or guide or something to the local trails. Some of these guys can rip, some are out of shape and others will probably be sketched out by gnarly dh. So if anyone can point me in the right direction of something fun and flowy that a couple of yahoos can ride hung over on for the day that'd be cool. Extra points if you know of a good bike shop in boulder that rents/ has fun demo bikes.