Rotor qxl oval aero road chainring rotors philosophy is to empower every cyclist to achieve his or her maximum potential the principle behind oval chainrings is that torque variations are smoothed out making better use of your strongest muscles the qxl range of chainrings has been designed for riders requiring a greater power output increased ovalisation is ideal for those already familiar with q rings who are experts in high intensity work riders who are fast twitch dominant will benefit f