Giant custom mount for MY22-Present Anthem with upper polycarbonate guidePerfect for 'clutched' 1 x drivetrains, as well as those using chain-retaining ringsTracked and grooved upper guide/backplate interface increases stiffness and eases installationCo-molded "TR" upper guide with softer durometer interior for silent guidanceCompatible with 8-12 speed drivetrainsFor single-ring drivetrains30 â 36 T ring compatibilityCustom Fit for Giant Anthem 2022 bikes