【Dual-Angle Mount for Zero Contact】 This rear bike bottle cage mount choose parallel or tilted mounting to prevent bottles from hitting your saddle/body. Perfect for aggressive riding positions on road/triathlon bikes.
【Endurance Hydration for Century Rides】 Seat bottle holders expand your water capacity with 2 extra bottles! Carry 1.5L+ for 100-mile rides—stay fueled without stopping. Ideal for hot-weather gran fondos or desert trails.
【Universal Saddle Rail Fit (1cm Space Required)】 Saddle Mount Adapter attaches to most saddle rails (road/MTB/tri bikes) via anti-slip screws. Note: Requires 1cm rail clearance. Includes spacers for secure install.
【Carry 2 Bottles + CO2 cartridges straps】 Water bottle cages under seat has 3 mounting points hold 2 bottle cages (sides/rear) + 2 saddlebag slots. Store tools/CO2 cartridges without sacrificing hydration.
【Weather-Resistant PA Nylon & Anti-Loosening Screws】 Bike bottle cages under seat high-strength PA nylon handles rain/gravel vibrations. Locking screws prevent drops on bumpy roads like Midwest trails.

Lexi –
Gamechanger for Long Rides, but Needs More Saddle Clearance
I picked up the JJZOUEN Saddle Adapter for my longer, more challenging distance rides, and honestly, it’s made a massive difference. The ability to mount either one or two cages per adapter means I can carry up to four bottles at a time (including the 2 frame mounts), which is a total gamechanger when hydration is the limiting factor on endurance rides. No more worrying about running dry before the next stop—this setup gives me peace of mind and helps me stay focused on the ride itself.The overall build feels sturdy, and installation was pretty straightforward. Once mounted, the cages hold bottles securely, even when tackling rougher stretches of road or trail. I was surprised by how stable everything felt considering how much extra weight was hanging off the back of the saddle.That said, the one drawback I ran into is positioning. In order to fit the adapter properly, I had to slide my saddle back quite a bit, which isn’t ideal if you’re picky about your bike fit. It’s not a dealbreaker for me, but it’s worth noting, especially for riders who are very particular about their setup.All in all, I’d give this 4 stars. It’s a highly functional product that solves a big problem for longer riders, with only some minor fit issues keeping it from being perfect.🌟 1 Star: I do not recommend this product at all, it has serious flaws and needs to be refined before I can recommend purchasing it🌟🌟 2 Stars: This product may have some major flaws, but there is still some good things about it. (I.E. Price)🌟🌟🌟 3 Stars: This product only has minor flaws or bad instructions, and I can still recommend buying it in most conditions.🌟🌟🌟🌟 4 Stars: This product has very few flaws and I recommend purchasing it.🌟🌟🌟🌟🌟 5 Stars: Exceptional product, minimal or no flaws.
LC (comprador verificado) –
Very nice addition to my mountain bike.
Very nice rear seat mount.I noticed that the screws keep coming loose so I put seize on the threads. I have to test this a little further.
Amazon Customer (comprador verificado) –
👍
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Jo (comprador verificado) –
Easy to Adjust for positioning.
Bottle cage easy to attach and you can position it anyway so it does not hit the tire. Right price.insulated water bottle fits perfectly.
Elianny Rodriguez (comprador verificado) –
Util
Muy util y excelente calidad muy facil de armar
Alina Dudau (comprador verificado) –
Works great
It works great. I have it on a Trek Domane 44 cm, so a small road bike that only had space for on bottleon the frame. Unfortunately, I need to find a frame bag now, because my under-the-saddle bag no longer fits. Fairly easy to install.
Colin –
Good for kids bikes too!
Very simple review here … the major theme is that this is also good for child sized bikes.The unit is plastic but not overly cheap feeling. It is fine, especially for water bottles. Please note that you DO NOT get a cage for your water bottles, but it uses standard mount patterns so most/any should work just fine.My kids bike (small) doesn’t have enough room for a good-sized water bottle on their frame as its a very sharp drop of the top bar … this saddle amount allows them to lug around their own water bottle whereas before I would have to lug it around for them :)This is a nice solution. Stable and easy to secure to your bike. I would avoid using the straps where possible
Riccardo (comprador verificado) –
good quality
it works
B. Crosby (comprador verificado) –
Cheap plastic. Sits too far out
The cheap plastic makes me wonder how long it will last. There are only two set adjustments so the bottle is either right up to your butt or at the lower setting it’s close to your tires and sits quite a distance out looking weird
Edgar m (comprador verificado) –
Casi raspa con una llanta d 27”
Solo queda en la posición vertical porque en la horizontal tengo que hacer mi asiento asta atras para poder atornillar el porta vasos y es muy incómodo tener el asiento d esa forma yo tengo mi asiento d alto de 32” pulgadas y d la llanta a la parte d abajo del vaso solo queda una pulgada antes que raspe contra la llanta