CARACTÉRISTIQUES DU PRODUIT Premium narrow-wide chainring designed for 104 mm BCD cranks CNC-machined and heat-treated 7075-T6 aluminum for increased durability Integrated tabs for a 49.5 mm chainline Designed for 9, 10, 11 or 12-speed drivetrains Ovality of 12%–13% with timing of 115° after TDC (top dead center) Available in 7...