Rolf prima elan disc clincher rear road wheelrolf prima describes the elan disc clincher rear road wheel as a training wheel but this alloy wheel contains the performance of a high end racing wheel light quick to accelerate aerodynamic plus the supreme stopping power of a disc brake this elan disc clincher is impressive elan disc clincher light and aero wheelthe elan clincher rear wheel is lightweight at 800 grams fast and aerodynamic this alloy training wheel features rolf primas pair