The TriRig Beta45 Bottle Carrier offers an aerodynamic and elegant hydration solution for triathletes and timecruisers. Designed to mount securely behind the saddle at a 45 angle, it reduces frontal area and stays tucked in the riders aero shadow for minimal drag.

Its simple yet ingenious designfeaturing a titanium thrurail and just two M5 buttonhead boltsallows independent adjustment of one or two bottles without moving the saddle. Compatible with any seatpost using 10mm thrurail hardware, it integrates seamlessly with TriRigs Kappa cages for maximum bottle retention and stability.

TriRig Beta45 Bottle Carrier Specs at a Glance

• Mounting Type: Rearmounted via 10mm thrurail with titanium rail included
• Angle: 45for a lower, more aerodynamic bottle position
• Adjustment: Two M5 buttonhead bolts allow independent positioning of bottles relative to saddle
• Compatibility: Works with seatposts using 10mm thrurail hardware (e.g., Cervelo P2/P3, Scott Plasma 5)
• Bottle Retention: Designed to pair with TriRig Kappa cages to prevent bottle launches

Design Benefits

1. Aero-Optimized Positioning: The 45 angle reduces drag by placing bottles in the riders aerodynamic profile.
2. Minimalist & Adjustable: Lightweight, low-profile construction with flexible bottle placement for either one or two bottles.
3. Secure Integration: Pairs with Kappa cages for unmatched bottle retention over rough terrain or sprint sections.

Final Take

The TriRig Beta45 Bottle Carrier is a refined, performance-driven option for rear hydration. Its aerodynamic positioning, simplicity of design, and secure retention system make it an excellent choice for competitive cyclists and triathletes who demand reliability and efficiency.