The Radius Telescope handlepost allows adjustment of the handlebars, so no matter how tall or short you are, you'll get the riding position that is most comfortable. The Radius is forged from aluminum for strength and features patented Fusion™ technology for an incredibly stiff coupling with the frame and fork. For 2008, the Radius 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.