Seatpost mount
Also known as: seat post mount, rear bike mount
A clamp that attaches a camera to the seatpost of a bike, usually facing backward to film riders following you or the trail you just rode.
Updated
What it means
A seatpost mount clamps around the round tube that holds the saddle. Pointing backward, it shows the trail rushing away behind you and any friends following, which makes a great alternative angle to forward-facing helmet and chest views.
Pointing forward under the saddle is less common, but a low side angle can show the rear wheel and suspension working over roots and rocks. Road cyclists use seatpost mounts for rear-facing safety cameras on busy roads.
The mount sits close to the frame, so footage feels fast and grounded, with the ground rushing past just below the lens.
How it works in practice
Tighten the clamp firmly and use a rubber shim if the seatpost diameter is smaller than the clamp. Avoid clamping on the part of a dropper post that slides into the frame, since the mount can block travel or scratch the post.
A rear-facing camera is perfect for group rides: one rider in front with a seatpost camera can film several friends behind in one run. Combine it with a forward camera on another rider for a two-angle story, which is great material for multicam editing.
Check that the camera does not touch the rear wheel or tire when the suspension compresses fully.
What to watch out for
Seatposts vibrate a lot, especially on hardtails and rough trails. Strong stabilization helps, and a short arm reduces wobble. Check a test clip before a long ride.
Mud and water spray from the rear wheel cover the lens quickly in wet conditions. A clean cloth and a quick wipe between runs keep the footage usable, and a lens protector helps.
Low mounts are exposed in crashes and on tight trails with rocks or stumps. Use a tether and accept that the mount may take hits. Inspect the clamp after a crash, because a cracked plastic part can fail on the next run without warning.
How RawClip handles it
Rear-facing seatpost clips give a fresh angle on the same run and show friends chasing behind you. Upload them with your forward-facing footage, and RawClip combines both views into one highlight of the ride.