Built light for racing, built tough for training — Mavic's Ksyrium SLS wheels do it all. Their stiff, lightweight Maxtal rims spin up to speed in a flash, whether you're attacking a climb or powering away on the flats. The QRM+ hubs feel like they'll spin forever while the aero Zicral spokes slice through the wind with the greatest of ease. Also included are Mavic's supreme Yksion Pro tires for great grip and a smooth ride. When it comes time to lead the pack, mount up a set of Mavic's Ksyrium SLS wheels!