These aluminum wheels are an obvious choice for anyone who wants to easily replace their stock wheels with a higher performance model. The Ksyrium S gives a performance boost to any bike. It's an accessible gateway to quality Mavic. without taking shortcuts. The Ksyrium S weighs 60 grams less than the previous Ksyrium UST while being wider. stronger and more laterally rigid. Fore technology improves stiffness. The rim's upper deck is not drilled, which optimizes its strength and stiffness and eliminates the need for a rim tape: that's 30 grams less on each wheel. With the new upper rim profile, mounting and demounting a tire has never been easier; our UST Tubeless technology reduces rolling resistance and increases grip while limiting the risk of punctures. These rims are manufactured in France. in our aluminum rim factory. Our new hub platform Infinity optimizes stiffness and power transfer through carefully tuned spoke tension. The Instant Drive 360 freewheel body combined with the Q...