Only twelve pairs of carbon spokes glued to the rim fix the tubular tyre rim to the hub, which is also made of carbon. The conical carbon fibre spokes taper from five millimetres in diameter at the hub to three millimetres at the rim. The voluminous spokes can transmit tensile and compressive forces - similar to Mavic's Rsys wheels. The pair weight of the Aero+ MCC (pictured) with a 48 millimetre high aero rim is 1,102 grams, while the Winium+ MCC version (24 millimetres high) weighs 1,003 grams. More remarkable than the sporty weight is the enormous stiffness of the wheels: 82/57 N/mm (front/rear) are top values. The riding impression is correspondingly light-footed, agile and precise. The riding noise is moderate. However, the thick spokes prevent good aerodynamics: the Winium+ with 18 thin steel spokes generated 13.7 watts of drag at 40 km/h in the wind tunnel, while the version with 12 thick carbon spokes generates 25 watts. The premium for the higher Aero+, which is one of the good Aero wheels with blade spokes, is likely to be similarly high. The wheels decelerate evenly, but the braking effect is quite weak, as is typical for carbon.
PLUS Stiffness; Weight; Processing
MINUS Aerodynamics; braking distance
Price 2,650 Euro
Reference/Info www.corima.fr
