The Apex Crankset is designed to offer maximum stiffness with minimum weight. Utilizing our innovative Cold forging process the Apex crankset tips the scales at less than 890 grams. Supplied with threaded BB.Key Features:Allow crankarms with lower Q factor than triple chainrings,PowerGlide chainrings are competition proven with long-lasting finishes,Arm Material: Forged AL-6061 T6 alloy crank arms,Chainring Material: AL-7075-T6 Hard-Anodized chainrings, Alloy chainring bolts,Weight: 890g w/BB,Q-Factor: Lower Q factor (147mm vs. 154.5mm) than triple chainrings,Technology: GXP BB, PowerGlide Chainrings .