Beta Rear-Mounted Bottle Carrier: Sleek Hydration for Any Seatpost
The TriRig Beta One is a streamlined rear-mounted bottle carrier designed for compatibility with any seatpost using 10mm thru-rail hardware. It’s the perfect solution for riders using bikes like the Cervelo P5/P Series, Scott Plasma, Factor Slick, Ventum Tempus, and many others. With a focus on simplicity and functionality, Beta is a beautiful combination of elegant design and efficient hydration.
Secured with just two M5 button head bolts, the Beta One can be adjusted independently of saddle position, allowing one bottle to be mounted directly behind the saddle or two bottles side-by-side. Its low-profile design ensures that the bottles remain in the aero shadow of the rider, delivering a drag-neutral hydration solution.
Beta One: Fully adjustable height and tilt. Can hold 1, 2, or 3 bottles.
All versions allow you to adjust the carrier to sit close to the saddle or further back to make room for a saddle bag, all while keeping the setup sleek and aero. The Beta also includes a titanium saddle rail and all necessary mounting hardware.
If you are mounting the carrier to a standard saddle rail, you'll need the Beta Saddle Bracket:
Beta Saddle Bracket: Elite Hydration Mounting for Any Saddle
The TriRig Beta Saddle Bracket is engineered to turn any saddle with rails into a race-ready hydration station, ensuring your hydration needs are met with precision and ease. Meticulously machined from aircraft-grade aluminum, this bracket eliminates the need for through-rail systems, providing a streamlined, performance-driven solution for mounting hydration bottles.
Designed for compatibility with the Beta 45/63/One carriers and Kappa Saddle Cages, the Beta Saddle Bracket allows you to securely mount up to two bottles behind your seat post, enhancing both accessibility and aerodynamics. Whether you’re racing or training, this setup ensures you stay hydrated without compromising performance.