The Gravity Logic crew at Winter Park has been redefining downhill mountain biking over the past few years, greatly expanding its trail system and special features in the Trestle Bike Park each summer and hosting Crankworx Colorado as its signature event. This summer, look for the opening of three new trails, including the aptly named "Cruel and Unusual," and for the inaugural Colorado Freeride Festival July 26-29. Need a refresher session in between trips over Berthoud Pass? Try the new Trestle Bike Park outpost in Denver's Barnum North Park, near Sixth and Federal; the skills park opened in the summer of 2011 and will be back in action this summer as soon as the Gravity Logic crews can get to pushing some dirt around.