Tri-Di Creations — Universal Between-the-Arms (BTA) Mounting Plate

The Tri-Di Creations Universal / Crono SLR Specific Between-the-Arms (BTA) Mounting Plate is a precision cockpit platform designed for triathletes who want a clean, strong, and highly adjustable mounting solution. Designed to mount directly under aero arm pads, this plate provides a stable base for between-the-arms hydration systems. Its universal slot pattern allows flexible positioning and compatibility with a wide range of cockpit setups. Engineered for stiffness, durability, and minimal weight, the BTA mounting plate integrates cleanly into modern aero cockpits while giving riders the ability to fine-tune their hydration and accessory placement. Key Features Universal between-the-arms mounting platform Designed to mount directly beneath aero arm pads Multiple possible mounting positions for flexible accessory placement Compatible with standard 64 mm bottle cage mounting systems Universal slot pattern for wide cockpit compatibility Crono SLR specific option available Designed for triathlon Specifications Specification Metric Imperial Description Overall Length 250 mm 9.84 in Plate length Overall Width 130 mm 5.12 in Plate width Plate Thickness 6 mm 0.24 in Structural plate thickness Bottle Mount Pattern 64 mm 2.52 in Industry-standard bottle cage spacing Maximum Torque 2 Nm 1.48 ft-lb Do not exceed Installation Instructions Tools Required: 4 mm hex driver (or appropriate tool for your bottle cage bolts) Remove your aero arm pad hardware from the cockpit. Position the BTA mounting plate beneath the arm pads, aligning the universal slots with your cockpit mounting holes. Install the appropriate M5 hardware through the arm pads and plate into the cockpit mounts. Tighten mounting hardware evenly to a maximum of 2 Nm. Select one of the three mounting positions for your BTA hydration or accessory setup. Install bottle cages, risers, or accessories using standard 64 mm M5 mounting hardware. Verify alignment and ensure all bolts are tightened to specification before riding. Important Notes Maximum torque for all M5 hardware: 2 Nm Do not use power tools Accessories, hydration systems, and mounting hardware beyond the supplied configuration are not included Inspect hardware periodically before riding