Generation 2 Stages PM mounted to a 165 mm Rival arm. Comes with a Rival crankset (GXP BB, 53/39 rings, 130mm BCD). I have a Wheels MFG BB adapter that will let you use this on a BB30 frame. New battery, updated firmware. $400 shipped. PM used less than one year. Crankset has maybe 200 miles on it.
http://i68.tinypic.com/fyo0v.jpg
http://i68.tinypic.com/fyo0v.jpg