Multi-Bottle BTA Rail: Creating options for Between-the-Arms Bottle Mounts 270mm Rail The TriRig Multi-Bottle BTA Rail offers a simple yet versatile solution for optimizing your between-the-arms (BTA) bottle mount setup. Ideal for any aerobar bottle mount configuration, this rail gives you the option to mount 1, 2, 3, or 4 bottles and accessories in multiple positions, providing an ergonomic and adaptable platform for your front end nutrition and hydration.Designed with practicality in mind, the Multi-Bottle BTA Rail is compatible with standard bottle cage spacing, ensuring seamless integration with a wide range of bottle cages. Its base mounting bolts align perfectly with standard bottle cage bosses, making installation effortless.Crafted from a 10mm thick billet of durable T6-6061 alloy and finished with a resilient hard-anodized coating, the Multi Bottle BTA Rail is built to last, promising reliable performance ride after ride. The ability to mount 1, 2, 3, or 4 bottle cages or accessories Universal Compatibility: Fits standard bottle cage spacing Durable Construction: Made from 10mm thick T6 aluminum with a hard-anodized finish for a lifetime of service.