Mavic ksyrium road front wheelendurance riders love the ride quality of mavics ksyrium wheels because theyre completely at ease climbing or on the flat and ready for any kind of adventure on the bike its hardly surprising that mavic has designed them to do exactly that featuresrims materials6000 aluminium height21mm jointsup drillingtraditional with h2 reinforcement brake track ub control weight reductionism valve hole diameter6 5mm tyreclincher etrto size622x17c recommend