The cage choice comes down to three things: entry direction (top, side, or rear-entry matters on full-suspension and aero frames), material (alloy, carbon, or titanium), and compatibility with non-standard bottles. Fidlock's TWIST system is worth considering if you struggle with bottle access during hard efforts — the magnetic base mounts to your cage bolt and the bottle clicks in and releases with a push rather than a pull. For triathlon-specific setups, behind-the-saddle carriers, aero bar-mounted systems, and down tube hydration require different planning than a standard road cage. TriRig and XLAB systems are engineered specifically for those positions, with integrated aero profiles and purpose-built bottles designed to fit.
RA Cycles carries cages and bottles from Arundel, Blackburn, Lezyne, Elite, Silca, Wolf Tooth, and Zipp for road and gravel riding. Fidlock's TWIST system covers the magnetic category. Moots offers a titanium cage for riders who want a more refined option than standard alloy. On the triathlon side, TriRig and XLAB lead with complete aero hydration systems — the TriRig Alpha Prime and XLAB Aero Carbon Wing Series are designed for riders running dedicated triathlon bikes with aero position in mind. Branded bottles from Colnago, Giordana, Cervelo, and Assos round out the range for riders who match kit to machine.
See also: aero water bottle systems for dedicated triathlon hydration, triathlon accessories, hydration bags, and CamelBak.
