RAM® Adapt-A-Post™（附Revolution棘輪/插座臂）

Finally, a ratchet arm that actually holds its tension over time. The single open socket fits my 1.5" ball mounts perfectly and the quick release makes swapping gear a breeze.

The quick release spline post base made installing this on my existing mount effortless, and the ratchet arm clicks positively into place every time. I’ve been using it for a week, and the grip on my phone is rock-solid even over bumpy roads.

The quick release spline post base makes swapping between mounts effortless, and the ratchet arm grips the ball with zero wobble once tightened. I’ve used it daily for a week now, and the open socket design is perfect for a 1.5" ball retrofit.