The Sidewinder redesign. We took our original Tray design and made it better. The V2 style sits flat and under the center hump. This is easier on the handlebars than the original design. The Sidewinder gives you an extra 5" in width to accommodate a mouse/mouse pad. The Sidewinder has been a regular in our tray offering for sometime and is well loved. The extra space is a must if you want to use a mouse and mouse pad.