The sram apex chainset offers maximum stiffness with minimum weight the apex tips the scales at less than 890 grams with the innovative cold forging process the alloy crankarms offers lower q factor than triple chainrings plus the sram powerglide chainrings are competition proven with long lasting finishes the powerglide chainrings start out with a raw 7075 t6 alloy plate were sram stamp coin and cnc the rings to create a precise shifting whole the coining shapes tooth profiles into desi