GT's Ruckus DJ Zero lights the trails up with a full Sanko butted chromoly frame and dialed dirt-jump geometry. In front, a Marzocchi 100mm-travel fork saves you on those ugly landings. Sporting tubular-chromoly cranks, burly GT wheels, and grippy rubber, the Ruckus can go from the street to the dirt with ease. Its simple singlespeed drivetrain offers huge clearance over obstacles and ramp lips, so drop in and don't look back. And, when the run's over and it's time to stop, you've got a wicked-powerful disc brake to back you up.