Mavic Ksyrium SL Heritage Rim Brake Wheelset The Ksyrium SL Heritage Rim Brake wheelset represents the absolute peak of aluminum engineering, offering a lightweight and incredibly durable ride for traditionalists who refuse to compromise on speed. By utilizing the ISM4D rim-;weighing a mere 400g-;and a solid upper bridge that removes the need for rim tape, this wheelset slashes rotational weight for lightning-fast acceleration. The 22mm deep profile is paired with patented aero spokes to keep inertia low and control high, resulting in a wheel that is laterally stiff for out-of-the-saddle efforts but vertically compliant to smooth out harsh road vibrations. Technical Excellence and Seamless Reliability Designed to be the perfect all-rounder, the Ksyrium SL Heritage incorporates the Infinity hub platform and ID360 freewheel technology for maximum stability and efficient power transfer. The Fore drilling technology keeps the rim bridge solid, significantly increasing stiffness while making the UST Road tubeless setup easier than ever. With no tape required and a rim bed shaped for effortless tire changes, you gain the benefits of lower rolling resistance and improved puncture protection with zero hassle. At a featherweight 1480g for the pair, and compatible with Shimano HG, SRAM XD-R, and Campagnolo systems, these wheels deliver world-class everyday performance for any rim-brake road bike.