The TriRig BTA (or "between the arm") spacers are great for adjusting the angle of your BTA bottle. In a forward-facing orientation, they can help athletes pull a bottle away from their bodies without knocking on their GPS unit. In the rear-facing orientation, the wedge-shaped spacers help level out a rear-facing bottle, minimizing the potential of leaking or accidental ejections. The spacers require the user to mount through the existing bottle mount on the underside, making it most valuable and compatible with TriRig's BTA riser.

The set includes three angled wedges, allowing the user to find the perfect tilt for their setup.