Sram red 22 11 speed chainset bb30 bbinnovation often comes from places you would least expect in order to make a lighter crankset we made it bigger to add stiffness we used less material the new sram red 22 ex0gram crankset is completely hollow all the way to the spider its hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight the stunning x g lide r chainrings are optimized for use with the yaw technology in the front derailleur deliverin