Ultralight full carbon clincher 18 spokes in the front and 24 in the rear offers the lowest inertia in the category superior aerodynamic performance the 40mm deep 25mm wide rim profile makes for an aerodynamic wheel that remains stable in any wind conditions best in class braking and reliability itgmax carbon technology for superior heat resistance and reliability the laser treated brake track gives predictable braking in all weather conditions integral glass transition temperature itgmax