Garmin EDGE Installation Instructions Manual page 5

5 Replace the screw, and use the 2.5 mm hex key to tighten the screw until the mount is secure.
NOTE: You should check the tightness of the screw periodically.
6 Open the locking ring
NOTE: The locking ring is in the open position when the red line is visible on the side of the mount.
7 Align the tabs on the back of the Edge device with the eBike mount notches
Installation Instructions
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