--- product_id: 93431380 title: "Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack" brand: "valdora" price: "1705050₫" currency: VND in_stock: true reviews_count: 13 category: "Valdora" url: https://www.desertcart.vn/products/93431380-bike-seat-water-bottle-holder-under-seat-bottle-cage-rack store_origin: VN region: Vietnam --- # Aerodynamic rear mount reduces drag Dual bottle capacity for ultimate hydration Lightweight 6065 aluminum, just 200g Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack **Brand:** valdora **Price:** 1705050₫ **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Stay ahead of the pack with hydration that won’t slow you down! ## Quick Answers - **What is this?** Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack by valdora - **How much does it cost?** 1705050₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/93431380-bike-seat-water-bottle-holder-under-seat-bottle-cage-rack) ## Best For - valdora enthusiasts ## Why This Product - Trusted valdora brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hydrate Like a Pro:** Dual water bottle holder keeps you fueled and focused on every mile. - • **Cut Through the Wind:** Sleek behind-saddle design slashes drag for faster rides and longer endurance. - • **Featherlight Strength:** Premium 6065 aluminum construction delivers durability without the bulk. - • **Rock-Solid & Rattle-Free:** Secure mounting with included hardware ensures no distractions on race day. - • **Tailored Fit, Maximum Access:** Zero and 25-degree angle adjustments for perfect reach on road and tri bikes. ## Overview The Valdora Saddle Water Bottle Holder is a dual-cage, aerodynamic bike accessory crafted from lightweight 6065 aluminum. Designed for triathletes and endurance cyclists, it mounts behind the saddle to reduce drag while providing easy access to two bottles. Adjustable angles and universal fit make it compatible with most saddles, ensuring secure, rattle-free hydration on long rides and races. ## Description Product description Valdora's Behind Saddle Bottle Cage Rack is A Must Have For Triathletes and Long Distance Road Riders Triathlon bike seat water bottle holder Also know as: Saddle water bottle holder | Bike seat bottle holder | Behind saddle water bottle holder | The triathlon bike hydration system that works. Multiple configurations for carrying water bottles, CO2 cartridges, and LED lights. Perfect for triathlon training and long training rides. A behind seat hydration system for racing bicycles. Attach 1, 2, or 3 bottle cages! Configure it to fit your needs! There are many possible configurations. Valdora's dual behind seat bottle rack attaches to the saddle rails and keeps your bottles out of the wind and in the slipstream. A must for long training rides. An extra bottle to replenish your between the aerobar bottle during races. Maybe a shot of the high carb nutrition that you will need. Or a modified bottle to carry an extra tube, tools, patch kit....whatever you can think of, carry it here. A competitor should not train or race without a Valdora hydro rack. Lightweight cnc'd alloy, tough, easy to adjust. Everything you need to train and race with confidence! Installation instructions included with rack and in pictures here. Not for use with carbon or 7 mm x 9 mm saddle rails or I beam. Saddle Water Bottle Holder | Triathlon Gear Triathlon Bike Behind Saddle Water Bottle Cage Mount. Multiple configurations for carrying water bottles, CO2 cartridges, CO2 inflator, and LED lights. Perfect for triathlon training and long rides. The bike seat water bottle holder. Bike water bottle holder behind seat. Rear Bottle Cage Mount Triathlon Style! Road bike water bottle cage back of seat mount. Details of saddle water bottle holder listed here - Bike Seat Water Bottle Holders & Rear Hydration Systems Bike seat water bottle holders, also known as rear hydration systems, provide cyclists with a convenient way to carry additional water bottles behind the saddle. These systems are particularly popular among triathletes, long-distance cyclists, and time trial riders who require easy access to hydration while maintaining an aerodynamic position. Types of Rear Bottle Cage Mounts Behind-Saddle Water Bottle Holders – These mounts attach to the saddle rails or seat post, keeping bottles within reach without affecting aerodynamics. Options include single, dual, or even triple cage mounts. Seat Post Water Bottle Holders – These attach directly to the seat post, offering a stable and secure bottle mount. They are ideal for road bikes, triathlon bikes, and time trial bikes. Saddle-Mounted Bottle Cages – These holders attach to the underside of the saddle, keeping bottles tucked behind the rider. Variants include single and double bottle cages with additional space for accessories such as CO2 holders. Triathlon Hydration Systems – Many tri bikes feature specialized hydration systems designed to integrate seamlessly with aero seat water bottle holders and other accessories. Key Features and Benefits Increased Hydration Capacity – Rear-mounted bottle cages allow cyclists to carry more water bottles, reducing the need for frequent refills. Aerodynamic Advantage – Positioning bottles behind the seat minimizes wind resistance, crucial for triathletes and time trial riders. Secure Attachment – High-quality saddle bottle cage mounts ensure bottles stay in place over rough terrain. Versatile Mounting Options – Riders can choose between saddle rail mounts, seat post-mounted bottle cages, and under-saddle hydration setups. Accessory Integration – Some mounts include additional storage options for CO2 cartridges, spare tubes, or tool bags. Popular Mounting Configurations Behind-Saddle Dual Bottle Cages – Allows riders to carry two bottles securely, often used in triathlon and long-distance cycling. Under-Saddle Water Bottle Holders – Mounts beneath the saddle for a low-profile hydration solution. Seat Post Bottle Cages – An alternative for bikes without sufficient saddle rail space. Rear Hydration Systems with Storage – Some systems combine bottle holders with compartments for tools or nutrition. Choosing the Right Rear Bottle Cage Mount For Triathlon & Time Trials: Dual rear bottle cage mounts are ideal for long races, paired with aero water bottles. For Road Cycling: Saddle-mounted bottle holders provide hydration without affecting frame space. For Touring & Endurance Rides: Multiple bottle cages help carry extra fluids for long distances. Bike Seat Water Bottle Holder with 2 Bottle Cages and 2 Bottles - The Rear Hydration System for Triathlon Bikes - A simple bike water bottle holder Valdora Behind Saddle Bottle Cage Holder for Triathlon and Road Bikes - Many configurations possible! Pictured above (for reference) with Behind Saddle Bottle Cage Rack CO2 Cartridges Bottle Cages Insulated Water Bottle About The Tri Bike Bottle Cage Holder The behind saddle bottle mount rack consists of a light weight machined aluminum bottle cage rack. It will allow you to attach 1, 2 or 3 bottle cages, CO2 cartridges, an LED light or a bolt on aero bag. Configure to your liking! Often referred to as dual water bottle holders or seat bottle holders, these are so much more. Works with all standard saddle rails! Behind Seat bottle cage mount works with all round standard saddle rails (not I beam). A necessary triathlon accessory. Refer to image with measurements for specifics. Bike Seat Water Bottle Holder Saddle Rail Picture to demonstrate the type of saddle that this saddle bottle holder rack will work with. Compare to your saddle prior to ordering. 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bottle cage bike triathlon Review: Arguably the best rear water bottle holder - Possibly the best rear water bottle holder for a single or double water bottle on the market. There are a lot of pros and one big con, but despite that, it gets 5 stars. Let me cut to the chase: its build quality and lightweight design make this a real winner—but the bolts are the con. You can’t screw steel bolts into aluminum threads without risking damage over time. Spend an extra $5.00, go to the hardware store, and get longer bolts that pass through the aluminum threads so you can secure them with steel nuts. That’s it—$5.00 makes it a 5-star item. I think the reason they don’t supply the bolts is because, depending on your seat and seat post design, it’s damn near impossible to get those nuts threaded on. I did it, but I’m handy. Buy it—but if you’re not prepared to buy the longer bolts and thread some steel nuts on the end, skip this purchase. Review: Great Product - Light weight and easy to install ## Features - 💧 Carry More, Go Farther – Dual water bottle holder capacity keeps you hydrated during Ironman races, long rides, or remote training routes. This behind bike saddle water bottle holder helps fend off fatigue brought on by dehydration as well as body temperature regulation. Retain mental clarity and judgement by keeping hydrated. This bike seat water bottle holder will help you maintain energy and focus. - 🌀 Aerodynamic Advantage – Sleek rear-mounted design reduces drag and frees up your frame triangle for nutrition or a bladder for centry rides. Valdora's behind saddle water bottle holder saves watts with its low-drag design. A slim, tucked-in profile that minimizes drag without compromising access. Unlike frame-mounted cages, the bike water bottle holder behind seat mount doesn't increase drag, which is critical in long races. - 🏆 Pro-Level Performance – Trusted by Professional Ironman triathletes, now optimized for both beginner and experienced triathletes. Zero and 25 degree angle adjustments ensure optimal access for road and triathlon bikes. The bike seat water bottle holder is compatibile with most saddles. Referred to as dual water bottle holders or seat bottle holders, the rack will also accommodate CO2 cartridges with space for and extra tube (not included). ADD TO CART NOW! - 🪶 Lightweight & Durable – This rear bottle cage mount triathlon accessory is built with high tech 6065 aluminum for strength without the bulk. At just under 200g it attaches to the the horizontal section of the saddle rails behind the seat post clamp. The bike seat bottle holder is a necesity for triathlon or long road riding adventures. - 🔒 Secure & Rattle-Free – Rock-solid. The installation is simple. Instructions and all necessary hardware are included. A properly installed tri bike bottle holder will be secure and rattle free! If you are looking for a triathlon bike bottle holder you won't be disappointed. Easy access to rear mount bottle cages is key. The saddle rail bottle cage holder needs to be a part of your next long ride. - Not for use with I beam style saddle systems, oval carbon saddle rails, beach cruisers or other department store type bikes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DON91Q8 | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #157,249 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #248 in Bike Water Bottle Cages | | Brand | Valdora | | Brand Name | Valdora | | Color | Ano Black | | Customer Reviews | 4.1 out of 5 stars 140 Reviews | | Hand Orientation | right | | Item Dimensions L x W x H | 5"L x 1.75"W x 3.25"H | | Manufacturer | Valdora | | Manufacturer Part Number | HYRK-FSAWT | | Material | Aluminum | | Material Type | Aluminum | | Model Number | HYRK-FSAWT | | Product Dimensions | 5"L x 1.75"W x 3.25"H | | UPC | 725410594108 | | Unit Count | 1.0 Count | ## Product Details - **Color:** Ano Black - **Material:** Aluminum - **Brand:** Valdora - **Product Dimensions:** 5"L x 1.75"W x 3.25"H - **Hand Orientation:** right ## Images ![Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack - Image 1](https://m.media-amazon.com/images/I/61AKWd9yRvL.jpg) ![Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack - Image 2](https://m.media-amazon.com/images/I/61d+EifCUkL.jpg) ![Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack - Image 3](https://m.media-amazon.com/images/I/61uKqboRKhL.jpg) ![Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack - Image 4](https://m.media-amazon.com/images/I/71HgdhK0d1L.jpg) ![Bike Seat Water Bottle Holder - Under Seat Bottle Cage Rack - Image 5](https://m.media-amazon.com/images/I/81tg25YrI8L.jpg) ## Questions & Answers **Q: What size water bottles does this hold?** A: The cages are standard bicycle specific bottle cages. Bicycle bottles are commonly available in 12-24 oz. Same diameter, only taller or shorter. Do not use sports bottles or metal bottles. They will break the cage. Take your bike and behind saddle rack to your local bike shop. Buy a couple good cycling specific bottles and ask them to install the rack. They will probabaly do it for free. I like the insulated POLAR bottles. **Q: Are there replacement seat railing brackets that I can purchase? Apparent both the screws on one side fell out and I lost one of the brackets.** A: Inquire about this by logging into your order on amazon and select contact seller. **Q: How well does it do with trails, bumps, and gravely roads?** A: This is not perfect, unfortunately. I lost my bottle a couple of times when hitting big bumps on the road. **Q: Is this a full kit with cage and 2 FSA water bottle holders?** A: Yes. This offer is the behind saddle rack with 2 white fsa cages. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Arguably the best rear water bottle holder *by R***W on April 25, 2025* Possibly the best rear water bottle holder for a single or double water bottle on the market. There are a lot of pros and one big con, but despite that, it gets 5 stars. Let me cut to the chase: its build quality and lightweight design make this a real winner—but the bolts are the con. You can’t screw steel bolts into aluminum threads without risking damage over time. Spend an extra $5.00, go to the hardware store, and get longer bolts that pass through the aluminum threads so you can secure them with steel nuts. That’s it—$5.00 makes it a 5-star item. I think the reason they don’t supply the bolts is because, depending on your seat and seat post design, it’s damn near impossible to get those nuts threaded on. I did it, but I’m handy. Buy it—but if you’re not prepared to buy the longer bolts and thread some steel nuts on the end, skip this purchase. ### ⭐⭐⭐⭐⭐ Great Product *by R***Y on May 27, 2025* Light weight and easy to install ### ⭐⭐⭐⭐ Works well, after you use your Dremel on it. *by M***R on November 7, 2022* Works well - lightweight and fairly easy to install. However, on my typical bike (Specialized Roubaix) I had to get out the Dremel and cut off the metal corner of the mounting bracket so that the holder could use the tilt angle without hiting the seat bracket. Without tilting the bottle holder does not extend out far enough and ends up hitting your rear end. Could be improved, but once I cut the excess metal so that it could tilt it worked very well. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/93431380-bike-seat-water-bottle-holder-under-seat-bottle-cage-rack](https://www.desertcart.vn/products/93431380-bike-seat-water-bottle-holder-under-seat-bottle-cage-rack) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*