Bottle cages

Check the mounting standard (M5 threads, 64 mm spacing) and the dimensions of the mounting point. Almost all road bottle cages use two M5 screws with a 64 mm spacing (universal standard). Frames with irregular tube shapes (oval, aerodynamic) sometimes require specially adapted bottle cages or special adapters (King Cage, Salsa Anything Cage). For gravel bikes and frames with mounting points under the down tube or in the front triangle, check the maximum dimensions accepted by the frame.

Choose a bottle cage with adjustable tension or a strong spring, and ensure the bottle is compatible. Bottle cages with adjustable tension (Elite Custom Race Plus) allow you to adjust the spring tension according to the size of the bottle. Cage holders with a tight neck (for 500 ml or 750 ml bottles) provide a better hold but require two hands to remove the bottle. On mountain bikes and gravel bikes, specific off-road bottle cages (King Cage Many Things Cage, Arundel Mandible) offer enhanced support. Check that the bottle (neck diameter) and bottle cage are compatible in size.

Yes, on almost all modern frames that feature two sets of cable routing: one on the top tube, one on the down tube. The vast majority of road frames have two bottle cage mounts (down tube + top tube), allowing you to carry two bottles. For long rides, two 750 ml bottles provide 1.5 litres, which is roughly 2 hours’ worth of hydration in hot conditions. On compact-geometry frames or carbon frames with a specific design, check that both mounts are usable.

Magnetic or integrated bottle cages (Trek, Specialized systems) and rear-mounted bottle cages are the solutions for aerodynamic bikes. On aero bikes (Trek Madone, Specialized Venge), front-mounted bottle cages create drag. Integrated (Bontrager Speed Stop) or magnetic systems reduce aerodynamic drag by 2 to 5 watts according to tests. Integrated frame bottle cages (in the frame) conceal the bottle within the front triangle. For triathletes, rear-mounted bottle cages (Xlab Torpedo) allow you to carry hydration without any frontal aerodynamic impact.

Marginally, and only for competitors who optimise every gram. An 18g carbon bottle cage versus a 45g aluminium bottle cage represents a saving of 54g for a pair. On a bike weighing 7kg, this saving is imperceptible outside of extreme situations (climbs at 6+ W/kg). For 99% of cyclists, the bottle’s grip, ease of removal and value for money take precedence over the few grams saved. Investing in a quality bottle (Elite Fly, CamelBak Podium) offers greater benefits than an ultra-light bottle cage.

Rinse with water after every ride; clean weekly with a brush to remove limescale and deposits. Bottle cages quickly become dirty with energy drink residues that stick and form deposits. Clean with warm soapy water and a small cylindrical brush for the corners. Aluminium bottle cages may show signs of slight oxidation (white powder): clean with diluted white vinegar and rinse thoroughly. For carbon bottle cages, avoid abrasive brushes that scratch the gel coat.

Yes, using a handlebar adapter (stem mount or bar mount). Handlebar adapters (such as the Minoura Water Bottle Cage Holder or Topcagehex) attach a bottle cage to the handlebars, the sides of the handlebars, or the stem. On road bikes with drop handlebars, the mounting options are limited. On mountain bikes and gravel bikes with flat handlebars, there are more options. For long rides where two bottle cages on the frame are insufficient, these adapters allow you to add a third hydration point.

Yes, insulated bottles (CamelBak Podium Chill, Specialized Purist Insulated) have a larger diameter than standard bottles. A standard bottle cage designed for bottles with a diameter of 73–74 mm will not hold an insulated bottle of 80–85 mm correctly. Check the diameters in the technical specifications. Wide-opening bottle cages (Elite Oto, Tacx Ciro) accommodate a wider range of diameters. A simple solution: the universal spring-loaded bottle cage, compatible with diameters from 65 to 85 mm.

B Bottle cages integrated into the aero cockpit (front cage, hydration systems) or those mounted behind the saddle are the standard in triathlon.B In triathlon, aerodynamics are a priority. Front hydration systems (Profile Design, Xlab Torpedo Nexus) position the bottle between the aero arms of the triathlon position, minimising drag. Rear saddle bottle cages allow for the storage of additional hydration without compromising the position. Standard frame bottle cages create more drag but are still used for practical reasons over long distances.