Rear Mount Bottle Cages of 2025
Best Choice1
XLABXLAB Delta 425 Single Bottle Rear Hydration System with Carbon Cage for Triathlon and Road Bikes
Main highlights- Worry Free Bottle Security - This single rear hydration cage system features a high grip carbon cage and stainless steel mount to hold your bottle securely while giving you easy access to your water. A great hydration solution for triathletes, road cyclists, fitness bike riders, or anyone looking to carry extra drinks.
- Includes - The carbon fiber GORILLA Cage boasts a full 10 pounds of grip to eliminate unexpected bottle launches. High arms and strong grip keep your bottle secure over any terrain while the chamfered opening makes removing your bottle easy. Vertical mounting slots give you the ability to raise or lower the bottle cage a full 1” allow you to dial in the perfect fit.
- Compatibility - Highly adjustable rear carrier, accommodates saddles with transition hooks . Fits select ISM️ FIZIK️ and Koobi️ saddles. Corrosion resistant mounting hardware securely attaches to your saddle rails to prevent swaying and rattling. The lightweight (165 grams) saddle mount is ergonomically designed so you can easily access the bottle even with limited flexibility.
- Aerodynamic Sweet Spot - Place your bottle in the most aerodynamically advantageous position, directly behind the rider, minimizing drag and maximizing time gains. Either eliminates the need for a frame bottle or lets you carry addition water and sports drinks for that long ride. Adds extra hydration and storage options without compromising aerodynamics
- Adjustability – Two chassis mounting positions, 15 degrees of cage rotational adjustment, and 15mm of cage vertical adjustment make it easy to find that perfect position.
9.9Exceptional
View offer on:
Show more
How do we rank?
Using our advanced technology, we scan thousands of products and stores, analyzing reviews, ratings, and trends to find what matters most to users like you.Our team then reviews the data and real user feedback, combining AI and human insights to bring you real-time, top-rated recommendations to guide your decisions with clarity and confidence.
Value for Money2
XLABXLAB Delta 200 Single Bottle Rear Hydration System with Carbon Cage
9.7 Easy installation9.5 Durability8.9 worth the moneyWhy we love it
Secure and stable bottle retention on any terrain.
Aerodynamic design minimizes drag for faster rides.
Easy access even with limited flexibility.
9.7Exceptional
View offer on:
Show more
3
VeloChampionVeloChampion Double Bike Water Bottle Cage Holder - Rear-Mounted Dual Bike Bottle System for Cycling Triathlon
Why we love it
Convenient: Easily adjustable for comfortable access.
Versatile: Fits most saddle rails.
Aerodynamic: Low drag for long rides.
9.4Excellent
View offer on:
Show more
4
ROCKBROSROCKBROS Bike Water Bottle Cages Saddle Cage Converter with Adjustable Angle Aluminum Alloy Lightweight Bicycle Bottle Holder Saddle Mount Adapter Suitable for Road Bike MTB
Main highlights- UNIVERSAL FIT: This bike water cage adapter is designed to be mounted on the rear seat of road and mountain bikes and is suitable for most water bottle cages. Designed for cycling enthusiasts, it not only holds two bottle cages at the same time for easy access to water bottles, but also makes perfect use of pillion space.
- QUICK INSTALLATION: The bike seat water bottle holder is easy and quick to install.First, using allen wrench to loosen the bolts.Next fix the adapter on the back seat bracket and adjust the angle you want. Then tighten the bolts and the installation is done. Easy to install and remove. Warm Tips:The water bottle and water bottle holder in the product picture are not included.
- POST-SEAT SPACE UTILIZATION: Our water bottle extension bracket can be installed with two water bottle holders at the same time, providing you with sufficient hydration for extra long rides. In addition, this holder is also compatible with bike tail bag, which largely utilizes the space on the back seat to carry more needed accessories for your long distance rides.
- LIGHTWEIGHT AND STRONG: ROCKBROS bike water bottle cages saddle cage converter is made of sturdy aluminum alloy, weighting about 98g (0.2lb).This water bottle bike mount won't add burden to your ride and let you travel easily. With CNC anodized process, which makes it comfortable in your hand. Also, it is not easy to rust and no need to be afraid of rain erosion.
- ADJUSTABLE ANGLE: This bike water bottle holder saddle mount adapter provides a new way to carry your water bottle, not only can it be easily adjusted to any angle for compatibility with water bottles in various models, but also makes it easier for you to reach your water bottle and refill it during your ride.
9.3Excellent
View offer on:
Show more
5
CyclingDeal14% OffCyclingDeal Bike Bottle Cage Saddle Mount Adapter - MTB Road Bicycle Saddle Rail Mount Water Bottle Holder with Adjustable Angle for Road Use ONLY - Quality Aluminium Alloy - for 2 Bottle Cages
Main highlights- ORDER NOW, WORRY-FREE! We're so confident about our product quality that we can provide a 2-year warranty!
- LIGHT & STRONG: Made of premium CNC-machined aluminum alloy, this adapter is both lightweight and durable. The patented mounting bracket system (PAT. 17/334,779) weighs only 100g/0.2 lbs. Please note that the water bottles and bottle cages shown in the product images are not included.
- EASY TO INSTALL: Attaching this adapter to the saddle rails is straightforward. Use the included Allen key and bolts to secure the adapter to the saddle rails, then simply attach your bottle cages to the bracket and place your water bottles into the cages. Please ensure the bolts are neither too tight nor too loose.
- COMPATIBILITY: One bracket holds two bottle cages. This saddle mount adapter is compatible with most bicycle seats on the market and is designed for Road Use ONLY. Compared to placing your bottle on the bike frame down tube or seat tube, this saddle mount adapter offers the advantage of being easy to reach while freeing up valuable space on your bike frame for other accessories like a pump or toolbox.
- ADJUSTABLE ANGLES: The adapter can be easily adjusted to any angle, allowing for more convenient access to your water bottles. It provides a new way to carry your bottles, making the most of the space behind your saddle while riding. The width between the clamps is also adjustable for a customized fit.
9.0Excellent
View offer on:
Show more
6
GenericZestco Bicycle Saddle Mount for Water Bottle Cages Adapter Compatible with Gopro Behind Seat Double or Single Rail Mount Bottle Cage Dual Rear Bike Seat Mount Adapter Road Bike Folding Bike Triathlon
Main highlights- You can make it DOUBLE or SINGLE setup depends on your need.
- WILL NOT fit MTB saddle mount and WILL NOT fit carbon rail.
- This product is made for saddles with standard 7mm metal rails.
- This bottle cage holder can also be used as a competible GoPro camera mount.
- The base of this adaptor is also adjustable.
- The angle of the bottle cages can be adjusted.
- Strong, sturdy, and has a high-quality.
8.9Very Good
View offer on:
Show more
7
ValdoraSaddle Water Bottle Holder | Triathlon Gear | Under Saddle Bottle Holder | Dual Water Bottle Cage Mount | Behind Seat Mount | Bike Water Bottle Holder | Bicycle Water Bottle Cage Holder
Main highlights- 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.
- 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.
- 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!
- 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.
- Not for use with I beam style saddle systems, oval carbon saddle rails, beach cruisers or other department store type bikes.
8.7Very Good
View offer on:
Show more
8
XLABXLAB Delta 105 Single Bottle Cage Rear Hydration System
Main highlights- Worry Free Bottle Security –This single rear hydration cage system’s high grip cage and sturdy mount hold your bottle securely while giving you easy access to your water. Well within the ideal range for set it and forget it bottle retention.
- Includes - The Nylon Matrix Composite material we use in our Italian manufactured XENON Cage is incredibly strong. It provides a full 8 pounds of bottle grip force keeping your bottle secure over the bumps while still making your bottle easy to remove. The water bottle holder has reinforced mounting slots and is highly impact resistant to provide long-term stability and durability.
- Designed For – A great hydration solution for beginner triathletes, road cyclists, fitness bike riders, or anyone looking to carry extra drinks.
- Compatibility - The saddle mount is ergonomically designed so you can easily access the bottle even with limited flexibility. Its clamshell mounting design prevents swaying and rattling while still mounting to most bike seats.
- Aerodynamic Sweet Spot - Place your bottle in the most aerodynamically advantageous position, directly behind the rider, minimizing drag and maximizing time gains. Either eliminates the need for a frame bottle or lets you carry addition water and sports drinks for that long ride.
8.6Very Good
View offer on:
Show more
9
XLAB13% OffXLAB Turbo Wing Dual Bottle Rear Hydration Mount for Triathlon and Road Bikes
Main highlights- Includes - High strength 6061-T6 aircraft aluminum alloy mounting chassis for excellent strength to weight ratio. Engineered “dimple” cut-outs into the chassis remove weight while increasing strength and rigidity. Includes 2 X-Straps to attach storage bag at the rear of the carrier. Corrosion resistant saddle rail and bottle cage mounting hardware combat the elements.
- Highly Adjustable - Designed to fit the widest assortment of saddles of any XLAB dual rear hydration systems. With 3 chassis mounting positions, 5 bottle cage rotational positions, and 10mm of bottle vertical adjustment, removing and inserting the bottle is a breeze.
- Compatibility - Fits most cromoly, stainless steel, and titanium round railed saddles. Includes the saddle mount and hardware needed to add 2 water bottle cages to the rear of your bike.
- Aerodynamic Sweet Spot - Place your bottles in the most aerodynamically advantageous position, directly behind the rider, minimizing drag and maximizing time gains. Either eliminates the need for frame bottles or lets you carry addition water and sports drinks for that long ride.
8.4Good
View offer on:
Show more
10
ValdoraVALDORA Bike Seat Water Bottle Cage Holder & LED Light - Rear Hydration Triathlon Bottle Cage Holder!
Main highlights- Triathlon Bike Behind Saddle Bottle Mount with multiple configurations. Single bike seat bottle holder or dual bottle cage mount. The ideal behind saddle water bottle holder for triathlon and time trial bikes. An extraordinary water bottle holder attaching behind seats. THE rear hydration system for behind bicycle saddles.
- Referred to as dual water bottle holders or seat bottle holders, these are so much more. Included is a bright red LED light for safety. The rack will also accommodate two CO2 cartridges (not included).
- Hydration - Nutrition: Carry one bottle, two bottles, or three bottles. Your best friend while training for long distance triathlons. Triathlete stocking stuffer Christmas gift.
- Behind seat bottle cage mount works with all round standard saddle rails (not I beam, carbon or not round rails). A necessary triathlon accessory. This will NOT fit department store bikes. This should only be used with higher end road bikes and triathlon bikes. It is NOT intended for mountain bikes, city bikes, hybrids, etc.
- Behind saddle alloy bottle mount rack and LED light are included. Does NOT include bottle cages or CO2 cartridges. Pictures are to demonstrate optional ways the behind saddle bottle holder can be configured. You will need to attach your own bottle cages to the rack prior to use. This bottle cage rack is for higher end road racing bikes and triathlon bikes.
8.2Good
View offer on:
Show more
Similar products on Amazon
