bikerumor monday mystery pic from jeff archer at first flight bicycles

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, 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. Debris cover for Cunningham/WTB rollercam brake that was then licensed to Suntour. These preceeded the Shimano U-Brake which were easier to adjust and far less prone to fouling.

What do you think?