The stealth outlook and superior braking performance of exalith in a limited 34haute route34 edition with a wider lighter ism4d rim newyears of supporting the haute route has taught us what works and what doesnt the ksyrium pro exalith haute route is a special edition wheel created for the sportives majestic climbs combining low weight with incredible efficiency weve added a wider lighter ism4d rim for improved aerodynamics and lighter weight with zicral spokes and isopulse lacing f