Rolf prima elan disc clincher rear road wheelthe elan disc combines rolf primas aerodynamic delta rim technology into an ultra lightweight wheelset perfect for the hills quick accelerations and the rigors of road training and racing all with the stop on a dime power and supreme modulation of disc brakes the rolf prima elan disc means choosing aero or light is no longer an eitheror proposition featuresrim material alloy clincherfreehub material forged aluminiumwheel size 700cspoke count