This superb model utilises SRAM's innovative cold forging process & weighs in at only 890g, so you won't have to worry about adding any unnecessary weight to your drivetrain. Powerglide Chainring: Starting out with raw 7075-T6 alloy plate, we stamp, coin, & CNC the rings to create a precise shifting whole. Coining shapes tooth profiles into designs CNC alone can't match, creating a stronger tooth by strain-hardening the alloy for superior durability. Stainless steel pickup pins give shifting longevity. Chainring-specific finishing technologies & laser graphics add durability & appeal.