An expandable stent for implantation in a body lumen, such as an artery, consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The radial strength of the stent is enhanced by selectively increasing the width of the crests by offsetting the center points of inner arcs relative to outer arcs.