Mavic crossride tubeless mtb wheelset boostthe mavic crossride tubeless wheelset is tubeless ready and boasts a wider rim that offers bigger air volume and better comfort these wheels come wrapped with mavics crossride quest tyres to enhance grip and rider comfort featuresrims materials6000 aluminium joint sleeved drillingtraditional with h2 reinforcement valve hole diameter8 5mm with pop off reducer tyreust tubeless and tube type etrto size 26 559x21c etrto size 27 5584x21c