Already a legend in its time, the SRAM RED Exogram Crankset is now available with refreshed graphics to compliment the new SRAM RED eTap componentry. The SRAM RED Exogram crankset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight. Exogram technology uses a large, hollow cross section all the way to the spider, minimizing weight while maximizing stiffness. SRAM's stiffest crank ever Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance Stiffer X-GlideR chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimized for shifting with the Yaw Front Derailleur ISO 4210 compliant.