Sram red gxp compact road cranksetthe sram red compact crankset features a completely hollow construction all the way to the spider its hidden bolt pattern makes better use of carbon fibre to further improve stiffness and shed weight its also equipped with x glider chainrings which provide seamless flawless performance and compatibility with srams yaw front derailleur this version of the sram red crankset uses their gxp bottom bracket system which makes it compatible with most road fra