Giant Propel Aero Down Tube Bottle Cage SUPPLIER WAREHOUSE This progressive sizing ensures the BK12 This progressive sizing ensures the most powerful positions remain right where they are needed consistent 13 tooth gap between chainrings makes for accurate Replacement downtube bottle cage for model year 2023 and onward Propel Advanced and Advanced SL frames FeaturesAero engineered with Giant AeroSystem ShapingSeamlessly integrates with the downtube on the latest generation PropelInjection molded composite technologySecure holdUCI approvedCompatible with model year 2023 and onward Propel framesNot compatible with pre model year 2023 Propel frames