TriRig Multi-Bottle BTA Rail

TriRig Multi-Bottle BTA Rail is a versatile hydration platform designed to maximize your between-the-arms (BTA) bottle mounting options. Built for riders who want complete control over their front-end nutrition layout, this rail allows you to position one, two, three, or even four bottles and accessories in multiple configurations, offering unmatched adaptability for long-course racing and personalized aero setups.

Compatible with standard bottle cage spacing, the Multi-Bottle BTA Rail integrates seamlessly with nearly any cage on the market. Its base mounts directly to standard bottle cage bosses, making setup straightforward on a wide range of aerobar systems. From minimal single-bottle layouts to multi-bottle endurance builds, the rail supports a full spectrum of hydration needs.

Machined from a 10mm-thick billet of T6-6061 aluminum and finished with a hard-anodized coating, the rail delivers exceptional strength and stability without unnecessary weight. It pairs perfectly with TriRig accessories such as Kappa bottle cages, the BTA Riser, and the 3-in-1 Polymount, giving riders endless configuration possibilities.

TriRig Multi-Bottle BTA Rail Specs

• Mounting Options: Supports 1–4 bottles or accessories.
• Compatibility: Works with standard bottle cage spacing and standard cage bosses.
• Material: 10mm billet T6-6061 aluminum.
• Finish: Hard-anodized for durability.
• Use Case: Ideal for triathlon and time-trial front-end hydration setups.

Design Benefits

1. Highly adaptable: Multiple mounting positions for bottles and accessories.
2. Universal compatibility: Fits standard bottle cage spacing for easy integration.
3. Race-ready durability: Thick alloy construction resists flex and wear.
4. Endless configuration options: Works with TriRig accessories to create a personalized setup.

Final Take

The Multi-Bottle BTA Rail gives triathletes maximum flexibility to build their ideal front-end hydration system. Strong, adaptable, and easy to configure, it’s the ultimate foundation for custom BTA layouts.