TWICE AS FAST: Extensive aero research offers nearly twice the time savings over previous generations; INCREASED ADJUSTABILITY: From the carrier to the cage, all optimizing speed and bottle access; INCREASED BOTTLE RETENTION: Cages re-positioned for optimum retention and easier access; CARBON BEAM: Special proprietary layup helps reduce cage vibration; WIDER COMPATIBILITY: Fits the widest range of saddle rails by mounting on the saddle's horizontal rail; ROAD AND BOTTLE USAGE: Approved for pavement roads with 769 mL (26 oz) bottles or smaller