TriRig Kappa Bullet

The TriRig Kappa Bullet is a small aero storage unit for the space between your arms, made from fiber-reinforced nylon. It holds a gel or other small race-day essential and sandwiches under any standard bottle cage, including BTA mounts.

Its distinguishing feature is an integrated, removable computer mount with a one-bolt attachment and Garmin and Wahoo inserts included. Keep the computer in your line of sight or take the mount off for a cleaner setup. It is sold as the Bullet alone, the computer mount alone, or the two together as the Complete option. TriRig describes the shape as helping smooth airflow between the arms.