Lightweight and very durable, laterally stiff but vertically compliant. The Ksyrium SL raises the bar, setting a new standard for aluminum road wheels. Ksyrium has always represented the best of aluminum wheel technology. Following in the footsteps of the venerable Ksyrium Elite and Ksyrium Pro, the Ksyrium SL takes it to the next level. It's the perfect all rounder for those seeking a wheel that delivers reliable everyday performance on the road. Specification Superlight and durable for everyday performance ISM4D rim weighs only 400g Patented lightweight aero spokes and 22mm deep/19mm wide rims keep inertia low and control high Solid upper rim bridge eliminates the need for rim tape, saving 60g Laterally stiff, vertically compliant for a more dynamic ride Fore technology keeps the rim upper bridge solid to make the rim stiffer Infinity hub plaform: stiff axle, durable bearings and new hub design guarantees wheel stability ID360 freewheel technology for improved power transfer...