The Radius Handlepost is forged from aluminum for strength and features patented Fusion™ technology for an incredibly stiff coupling with the frame and fork. The Radius Telescope handlepost is adjustable so no matter how tall or short you are, you'll get the riding position that is most comfortable. This Handlepost (Lower only supplied and without the mid point clamp) is designed to fit the Dahon Vigor and has a different Silver finish (more polished finish) than all other models