A light and sturdy wheel tyre system with high end yksion elite tyres and wide and light ism rims weight 1690 grams pair without tyre light and wide ism machined welded rims 17mm internal width for low rolling resistance and extra comfort 25mm light yksion elite tyres stiff and dynamic isopulse lacing optimized bearing placement straight pull bladed spokes deliver optimal stiffness the usual mavic durability h2 reinforced spoke holes sealed cartridge bearings welded rim for strength and b