Sram: The new Force 22 crankset delivers an upgrade in performance by utilizing unidirectional carbon in the crank arm matched to a forged alloy spider. And, like RED, the hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight.The stunning X-GlideR chainrings are optimized for use with the YAW Technology in the front derailleur, delivering seamless, flawless performance. It comes in fullsize and compact ratios and in multiple crank arm lengths.