The new R29 XC enhances cross-country riding, whether on race day or on training rides. The tubeless-ready rims boast 21 mm wide channels, to accommodate wider tires and improve contact with the trail. Made of 6061 series alloy, these wheels are affordable and lightweight. 15 mm, 20mm and twelve x 142mm through axle end caps are included. Freehub is for 9-10 speed - NOT eleven speed!