{"title":"Support de bouteille arrière","description":"\u003ch2\u003eWider than the pro default. Measurably faster.\u003c\/h2\u003e\u003cp\u003eBehind-the-saddle hydration has become the pro-field standard — every serious tri and TT setup now runs two bottles behind the saddle. The question is how they're mounted. Most systems put the bottles close together. AeroGain mounts them wide apart, in a V-formation, and in velodrome population testing that spacing measured \u003cstrong\u003e1–4 W faster than close-together mounting\u003c\/strong\u003e (n=17 athletes, 45 km\/h, 0° yaw). The wider the V, the less the bottles' aerodynamic wakes cancel each other out.\u003c\/p\u003e\u003ch3\u003eWhy wider is faster\u003c\/h3\u003e\u003cp\u003eBehind the saddle, each bottle sits in the rider's wake, partially filling the low-pressure void that would otherwise drag the rider back. When bottles are mounted close together, their wakes overlap — each bottle reduces the benefit the other provides. Opening them into a wide V lets each bottle work independently. The physics is straightforward; most systems don't exploit it because wider spacing is harder to engineer securely.\u003c\/p\u003e\u003ch3\u003eWhat's in this category\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAero BTS PRO system\u003c\/strong\u003e — the flagship. Tightest shell geometry, 900 ml integrated storage, 1–2 W faster than the standard BTS. Banned at Ironman Texas when ridden by Vincent Luis on debut — now fully approved by World Triathlon and Ironman.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAero BTS system\u003c\/strong\u003e — the standard. Same wide-V bottle positions and saddle clamp as the PRO. 800 ml storage, 60 g lighter, €50 less.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAero BTS PRO cup\u003c\/strong\u003e — PRO cup only, without saddle clamp. For riders who already have a compatible clamp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAero BTS cup\u003c\/strong\u003e — standard cup only, without saddle clamp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAero BTS Carbon Saddle Clamp\u003c\/strong\u003e — saddle-specific, carbon-rod clamp. Sold separately. Fits both cups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to choose\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eStarting from scratch?\u003c\/strong\u003e Buy the full system — PRO or standard. Both include the saddle clamp. Choose PRO for the tightest shell (1–2 W faster than the standard BTS), 900 ml of storage, and a white logo that matches the Aero Cockpit. Choose the standard for the same wide-V geometry at 60 g less and €50 less.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlready have a clamp?\u003c\/strong\u003e Buy the cup only. The PRO cup (900 ml) and standard cup (800 ml) both fit all Aero BTS Carbon Saddle Clamps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed a clamp?\u003c\/strong\u003e The Aero BTS Carbon Saddle Clamp is sold separately. Each variant is tooled to one specific saddle — select yours from the variant list.\u003c\/p\u003e\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow is this different from other behind-the-saddle systems?\u003c\/strong\u003e\u003cbr\u003eBottle spacing. Most systems mount bottles close together — but close-together mounting overlaps the bottles' aerodynamic wakes, reducing the benefit each one contributes. The AeroGain wide V spaces them further apart so each bottle fills the low-pressure zone independently. That is why our velodrome data shows 1–4 W of advantage over the close-together default.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between the PRO and the standard?\u003c\/strong\u003e\u003cbr\u003eBoth use the same bottle positions and the same saddle clamp. The PRO adds a shell that hugs the bottles more tightly (1–2 W over the standard), 900 ml of storage vs 800 ml, and a white logo to match the Aero Cockpit. The standard is 60 g lighter and €50 less.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I upgrade from the standard cup to a PRO cup later?\u003c\/strong\u003e\u003cbr\u003eYes. The saddle clamp is shared between both systems. Buy the Aero BTS PRO cup and it mounts directly to your existing clamp.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAero figures from AeroGain in-house velodrome population testing, n=17 athletes, 45 km\/h, 0° yaw, vs. two 750 ml bottles mounted close together. Full whitepaper available on request.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"shiv-fuelcell-aero-bottle-mount","title":"Support de bouteille aérodynamique Shiv Fuelcell","description":"\u003cp data-start=\"2429\" data-end=\"2545\"\u003e Couvercle pour poche à eau Specialized Shiv Tri, avec supports intégrés pour le montage d'un porte-bidon sur le dessus. \u003c\/p\u003e\n\n\u003cul data-start=\"2547\" data-end=\"2847\"\u003e\n\n\u003cli data-start=\"2547\" data-end=\"2619\"\u003e\n\n\u003cp data-start=\"2549\" data-end=\"2619\"\u003e Compatible avec le \u003cstrong data-start=\"2569\" data-end=\"2593\"\u003eSpecialized Shiv Disc Tri\u003c\/strong\u003e (version Fuelcell uniquement) \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2620\" data-end=\"2668\"\u003e\n\n\u003cp data-start=\"2622\" data-end=\"2668\"\u003e Couvercle de pile à combustible de remplacement direct \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2669\" data-end=\"2746\"\u003e\n\n\u003cp data-start=\"2671\" data-end=\"2746\"\u003e Les supports de fixation permettent une installation sécurisée d'un porte-bidon standard. \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2747\" data-end=\"2805\"\u003e\n\n\u003cp data-start=\"2749\" data-end=\"2805\"\u003e Idéal pour les courses longues nécessitant une hydratation supplémentaire. \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2806\" data-end=\"2847\"\u003e\n\n\u003cp data-start=\"2808\" data-end=\"2847\"\u003e \u003cem data-start=\"2808\" data-end=\"2847\"\u003ePile à combustible et porte-bidon non inclus\u003c\/em\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp data-start=\"2849\" data-end=\"2919\"\u003e Donnez plus de polyvalence à votre Shiv Tri grâce à l'option d'un porte-bouteille monté sur le dessus.\u003c\/p\u003e","brand":"AeroGain","offers":[{"title":"Default Title","offer_id":42162400788559,"sku":"AG-SH","price":139.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/IMG_3397.jpg?v=1751981060"},{"product_id":"xlab-gorilla-bottle-cage","title":"Porte-bidon XLAB Gorilla","description":"\u003cp\u003e Le complément idéal des supports AeroGain BTA\u003c\/p\u003e\n\n\u003cul class=\"BlackBullet\"\u003e\n\n\u003cli\u003e Six doigts préhensiles agrippent les bouteilles avec une force de préhension d'environ 5 kg.\u003c\/li\u003e\n\n\u003cli\u003e Les côtés hauts permettent de maintenir les grandes bouteilles en place afin qu'elles ne soient pas éjectées du système BTA.\u003c\/li\u003e\n\n\u003cli\u003e Insertion facile du flacon grâce à un intérieur spécialement conçu\u003c\/li\u003e\n\n\u003cli\u003e Plus de bouteilles perdues avec la \u003cspan class=\"xlab\"\u003eGORILLA CAGE\u003c\/span\u003e !\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"AeroGain","offers":[{"title":"Noir mat","offer_id":43589726208079,"sku":"XLAB-G-1","price":74.9,"currency_code":"EUR","in_stock":true},{"title":"Noir brillant","offer_id":43589726240847,"sku":"XLAB-G-2","price":74.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/Carbon-Gorilla.jpg?v=1750092955"},{"product_id":"tririg-kappa-saddle-cage","title":"Cage Tririg Kappa","description":"\u003cp class=\"MsoNormal\"\u003e \u003cspan\u003eLe complément idéal des supports AeroGain BTA\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e \u003cspan\u003eLe porte-bidon Trigrig Kappa, le plus robuste et le plus polyvalent du marché, a été spécialement conçu pour les triathlètes. Pensé pour un objectif unique – une adhérence optimale –, le porte-bidon Kappa empêche les projections de bidon mieux que tout autre modèle, ce qui en fait le choix idéal pour les configurations exigeantes comme les fixations BTA et les systèmes d'hydratation arrière.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul type=\"disc\"\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eAdhérence supérieure : Empêche les projections de bouteille grâce à une conception enveloppante solide qui maximise l'adhérence.\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eConstruction en fibre de carbone 3K : offre une rigidité et une durabilité inégalées pour les configurations route et triathlon.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eUtilisation polyvalente : Fonctionne parfaitement avec le porte-bagages arrière Beta ou toute configuration basée sur une selle, ainsi qu’avec les configurations BTA avant.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eInstallation facile : Comporte des fentes de dégagement pour la fixation par collier de serrage ou une compatibilité avec les supports BTA standard.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"AeroGain","offers":[{"title":"Default Title","offer_id":43709637918799,"sku":"TR-K","price":74.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/kappa-cage-tririg-1_jpg.webp?v=1760896267"},{"product_id":"tririg-kappa-cage-saddle","title":"Selle Tririg Kappa Cage","description":"\u003cp class=\"MsoNormal\"\u003e \u003cspan\u003eLe complément idéal des supports AeroGain BTA\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e \u003cspan\u003eLe porte-bidon Kappa Saddle Cage est conçu pour offrir un maintien optimal et une grande praticité, notamment pour le bidon inférieur sur nos supports BTA et pour l'hydratation derrière la selle. C'est la solution idéale pour les triathlètes et les cyclistes. Reprenant les atouts du porte-bidon Kappa original, le Kappa Saddle Cage inverse la géométrie pour les bidons montés à l'arrière, garantissant un maintien sûr et un accès facile.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul type=\"disc\"\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eConception révolutionnaire du système de rétention : la languette de rétention inversée offre la meilleure rétention de bouteille disponible pour les applications derrière la selle.\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eAccès facile à la bouteille : La nouvelle position de la languette permet de retirer et de remettre la bouteille plus facilement, idéal pour s'hydrater en déplacement.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eConstruction ultra-résistante : les parois épaisses et les fentes de fixation pour attaches autobloquantes assurent un montage solide et pratique, tandis que la conception sans découpe garantit la solidité.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli class=\"MsoNormal\"\u003e \u003cspan\u003eLe porte-bidon Kappa Saddle Cage élimine le besoin de sangles ou de cordons et garantit que les bouteilles restent bien en place sur tous les terrains, offrant ainsi une solution d'hydratation sans tracas pour les athlètes de haut niveau.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"AeroGain","offers":[{"title":"Default Title","offer_id":43709658595407,"sku":"TR-KS","price":74.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/KappaSaddleBottleCage_01_jpg.webp?v=1760897426"},{"product_id":"xlab-gorilla-bottle-cage-copy","title":"XLAB Torpedo Reload Kit","description":"\u003cp data-start=\"0\" data-end=\"39\"\u003eBuilt for staying aero, not sitting up.\u003c\/p\u003e\n\u003cp data-start=\"41\" data-end=\"281\"\u003eThe XLAB Torpedo system is a proven BTA hydration setup designed to let you drink without breaking position. Positioned cleanly between your arms, it keeps airflow smooth while giving you constant, easy access to fluids during hard efforts.\u003c\/p\u003e\n\u003cp data-start=\"283\" data-end=\"585\"\u003eThe bottle and straw system is fully optimized for in-position use: you drink through the bite valve without lifting your head, and the leak-free design means no mess—whether you’re riding smooth tarmac or rough roads. Refilling is simple and can be done on the fly, so you stay focused on performance.\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"753\"\u003ePaired with our Double Bottle BTA system V2, it integrates neatly into a dual hydration setup—giving you both capacity and convenience without compromising aerodynamics.\u003c\/p\u003e\n\u003cp data-start=\"755\" data-end=\"832\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eA practical solution when you want to stay low, stay fast, and stay hydrated.\u003c\/p\u003e","brand":"AeroGain","offers":[{"title":"Default Title","offer_id":45159280345167,"sku":"XL-TR","price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/torpedo-reload-kit-black_1.jpg?v=1777628852"},{"product_id":"aero-bts-pro-system","title":"Aero BTS PRO system","description":"\u003cp\u003eWhen Vincent Luis lined up at Ironman Texas with the Aero BTS PRO behind his saddle, race officials banned it on the spot. They hadn't seen anything like it. The system has since been reviewed and fully approved by World Triathlon and Ironman. The data didn't change.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1–2 W faster\u003c\/strong\u003e than the Aero BTS standard system — which is itself already 1–4 W faster than two bottles close together\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e900 ml of integrated storage\u003c\/strong\u003e — 100 ml more than the standard BTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell hugs the bottles\u003c\/strong\u003e — tighter profile, less exposed surface, smaller wake\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite logo\u003c\/strong\u003e — designed to match the Aero Cockpit\u003c\/li\u003e\n\u003cli\u003eSaddle-specific carbon-tube build, ~350 g, holds 2 × 1000 ml bottles\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AeroGain","offers":[{"title":"Wove V8","offer_id":45399712825423,"sku":"AG-BTS-P-03","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Gebiomized Stride","offer_id":45399712858191,"sku":"AG-BTS-P-02","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Prologo T Galle TT","offer_id":45399712890959,"sku":"AG-BTS-P-10","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"ISM PN3.1","offer_id":45399712923727,"sku":"AG-BTS-P-01","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Specialized Sitero","offer_id":45399712956495,"sku":"AG-BTS-P-6","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Dash Integrated seat post","offer_id":45399712989263,"sku":"AG-BTS-P-8","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Selle Italia Watt Superflow","offer_id":45399713022031,"sku":"AG-BTS-P-5","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"Fizik Transiro Aeris","offer_id":45399713054799,"sku":"AG-BTS-P-4","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"PRO Stealth Team","offer_id":45444493869135,"sku":null,"price":349.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/IMG_0735.jpg?v=1780297582"},{"product_id":"aero-bts-pro-cup","title":"Aero BTS PRO - cup","description":"\u003cp\u003eThe PRO cup unit on its own — for riders who already have an Aero BTS Carbon Saddle Clamp and want to add the PRO's 900 ml storage tray and tighter bottle shell.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e900 ml of integrated storage\u003c\/strong\u003e — 100 ml more than the standard cup\u003c\/li\u003e\n\u003cli\u003ePRO shell geometry — hugs the bottles for a tighter aero profile\u003c\/li\u003e\n\u003cli\u003eFits all Aero BTS Carbon Saddle Clamps\u003c\/li\u003e\n\u003cli\u003eHolds 2 × 1000 ml bottles in the wide V-formation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSaddle clamp not included. The Aero BTS Carbon Saddle Clamp is sold separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"AeroGain","offers":[{"title":"Default Title","offer_id":45435578286159,"sku":"AG-BTS-P","price":199.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7657\/1215\/files\/IMG_0735.jpg?v=1780297582"}],"url":"https:\/\/aero-gain.com\/fr-fr\/collections\/rear-bottle-mount.oembed","provider":"AeroGain","version":"1.0","type":"link"}