Measured it and it is a 16" (BB to center of top tube). Yes, has the Avid 20s V brakes, Avid AD -1.0L levers, STX-RC rear derailleur, Shimano A front derailleur, Suntour XR300 crank, STX-RC 8S Paralax rear hub, GT front hub, and ZAC 19 wheels front and back. I think it's completely original...