The Mavic Ksyrium SL Disc 700c Wheelset is lightweight (100g lighter than the former Ksyrium Elite despite its wider rim) and as durable as ever thanks to the patented ISM4D technology. This manufacturing process removes all excess material between each spoke hole while keeping the rim wall thick enough where spoke tension and stress are the highest. Those rims are made in France, in Mavic's aluminium 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. Stiffness is optimized using Fore technology. The upper bridge is not drilled, so it remains strong and rigid and doesn’t require the use of rim tape (another 30g saved per rim) ... More info
