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; the Radius ProLite has a fixed height handlebar but is much lighter. For 2008, the Radius Telescope is upgraded with larger diameter tubing for substantially improved stiffness and Covert quick releases that feature longer levers, stainless pivots, and brass bushings for even easier operation.