bikerumor monday mystery pic

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this part is (yes, we see the logo on the part!), post your answer in the ‘comments’ section– the correct answer will be posted there on Tuesday!

To send in your own Mystery Pic to be considered for the Monday feature, click here and attach your photo with all pertinent information.


  1. It’s a steering damper for mountainbikes from Stabletec, called the Dampenator – it had limited success. It assembles right on to your existing headset. The company is from Huntington Beach, California.

  2. It is a steering damper; it does sound like y’all understand what they do. They prevent high-speed “head shake” (precession), not vibration.

    Useless info: the old school way to reduce head shake (before dampers) was to over tighten the headset a little bit.

What do you think?