When unparalleled speed and pedaling efficiency is what you desire, SRAM's Rise 60 Rear Wheel rises to the occasion. This featherweight hoop with Carbon Tuned rims and butted stainless spokes blend just enough strength and stiffness with an impeccably low weight. There's no waiting for engagement, as the Double Time ratchet mechanism ensures the wheel moves as soon as your legs do. Once they start spinning, there's almost no stopping the incredibly smooth, durable Speedball Ceramic bearings.