Pop a wheelie: The Centaur uses dynamic stabilization technology to limit and/or maintain the angle at which the rider experiences the device. What would normally be a dangerous maneuver on a motorcycle or ATV becomes safe and controlled on the Centaur. In addition, the rider can position his/her body in three different ways, which makes for a fun ride. This technology also allows for a high-performance design with a short, compact wheelbase - a combination that traditionally can be very difficult to control.
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http://origin.www.segway.com/centaur/