The stealth outlook and superior braking performance of exalith now available with a wider and light ism4d rim newthe ksyrium pro exalith 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 performanceexalith treatedexalith is a special chemical treatment that penetrates deep within the aluminum alloy offering multiple benefits the ri