Tour de Fat is another weird one. Not, like, Beaver Queen Pageant weird, but it’s up there.
New Belgium (which is a brewery that is mostly in the business of making beer) operates a travelling show which is about bicycles (and also, of course, about New Belgium beer). The event is located in and around the DBAP, with various activities for all ages thereabouts.
The show itself is free, but if you’re so inclined you can cough up some cash to help support local non-profits.