Sram apex white gxp compact 10sp chainsetdouble is all you need the apex crankset is designed to offer maximum stiffness with minimum weight utilizing srams innovative cold forging process the apex crankset tips the scales at less than 890 grams allow crankarms with lower q factor than triple chainrings powerglide chainrings are competition proven with long lasting finishes technologies powerglide chainring technology starting out with raw 7075 t6 alloy plate they stamp coin and cnc t