No matter what or how you ride, one factor remains constant: the need for maximum visibility. Whether racing or going on a simple ride in the mountains, the ability to make safe headchecks and see obstacles clearly is critical. The Panovision viewport offers riders additional vertical and lateral visibility over more traditional viewports. This allows the rider to see better in a tight or tucked position and make safer lane changes and headchecks.; Replacement face shield for Bell Pro Star, Race Star, Star, SRT and SRT Modular Helmets