The mavic ksyrium pro exalith 700c wheel takes all of the best features from the ksyrium pro and adds our exclusive exalith rim surface treatment this means incredible versatility and all round ability combined with stunning looks and amazing braking performance exalith is a special chemical treatment that penetrates deep within the aluminum alloy this means that the rim is reinforced notably at the brake track so therersquos very low wear over time braking power is greatly improved red