The mavic ksyrium clincher wheelset is a lightweight and durable wheel tyre system with premium yksion elite tyres the lightweight and wide ism machined rims ensure low rolling resistance and increased comfort durable and dynamic the mavic ksyrium disc wheelset is constructed with straight pull bladed spokes to provide optimal stiffnessfeatureslight and wide ism machined welded rims17mm internal rim width for low rolling resistance25mm light yksion elite tyres provide added comfortoptimal