Lightweight and very durable, laterally stiff but vertically compliant. The brand new Ksyrium SL raises the bar and sets a new standard for aluminum road wheels.
Ksyrium has always represented the best of aluminum wheel technology. The new Ksyrium SL follows in the footsteps of the venerable Ksyrium Elite and Ksyrium Pro and takes it to the next level. It is the perfect all-rounder for those looking for a wheel that performs reliably on the road in everyday use. The new wheel is lightweight (100 g lighter than the previous Ksyrium Elite despite wider rim) and durable as ever - thanks to the patented ISM4D technology. This manufacturing process removes all excess material between the individual spoke holes, while the rim wall remains thick enough where the spoke tension and load is highest. These rims are manufactured in France, in an aluminum rim factory. The double-butted spokes further reduce weight while making the wheel more responsive. These spokes also have a patented elliptical shape that can save 5 watts for added efficiency. The stiffness is optimized by Fore technology. The upper bar is not drilled, so it remains stable and stiff and does not require rim tape (another 30 g savings per rim). The new rim bed shape makes it easier than ever to mount and dismount tires, and our UST Tubeless technology improves rolling resistance and grip while reducing the risk of punctures. The new Infinity hub platform optimizes stiffness and power transfer with highly controlled spoke tension, while the Instant Drive 360 freewheel combined with the automatic bearing preload adjustment (QRM Auto) ensures fast engagement and durability.
Super lightweight and durable for everyday use. ISM4D rim weighs only 400 g. Patented lightweight aero spokes and 22mm deep/19mm wide rims provide low inertia and high control. Massive upper rim web eliminates the need for rim tape, saving 60 g.
Laterally stiff, vertically compliant for a more dynamic ride. Fore technology keeps the upper rim web stable to make the rim stiffer. New Infinity hub shape: stiff axle, durable bearings and new hub design ensure wheel stability. ID360 freewheel technology for improved power transmission.
Improved UST Road delivers more speed, comfort and control in an easy-to-use tubeless system. No tubes mean less friction, better efficiency and grip, a lower risk of punctures. New rim bed shape makes mounting and changing tires easier. Pre-drilling technology eliminates the need for rim tape