The r20 dicut climbs very well and has a comfy ride on the way down the high end aluminium rims and the super stiff new aero nail head spokes let the r20 dicut cut corners with precision perfect for all those who want both the city sign sprint and climbing glory freehub dicut wheels are compatible with the shimano 11 speed standard this ensures the rider always has the right gear on hand decisive in a race and welcome on training rides also compatible with all 10 speed systems when using