Bikerumor Monday Mystery Pic

bikerumor monday mystery pic jeff archer from 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.


Sean - 04/01/13 - 8:50am

Some bizarre rear dropout adapter to use 120mm (track) wheels in a 130 or 126mm (hard to tell) frame?

David - 04/01/13 - 8:53am

tandem bike chain tensioner

MS - 04/01/13 - 9:09am

It looks like some kind of truing stand adapter since it appears to have finger knobs … but the face of the cone-shaped part appears to be coplanar with the dropout face, so all it would accomplish is offsetting.
It doesn’t appear strong enough to be used on a loaded axle though. Perhaps it’s a roof rack adapter to accomodate disc brake calipers.

Steve M - 04/01/13 - 9:18am

Nipple wrench-pair.

CH - 04/01/13 - 9:22am

Perhaps they are part of a fender mounting system? This part may be used to mount the frame of the fender to the axel.

Loki - 04/01/13 - 9:51am

Adapter/dropout based minimalist front suspension. Copy of early Monark (spelling?) dropouts usually one motor-assisted bikes.

Irma Gerd - 04/01/13 - 10:39am

Campy cuff links.


ant1 - 04/01/13 - 11:58am

adjustable setback clamps for an old 1830s campy seatpost.

MS - 04/01/13 - 12:21pm

It’s probably not that last one since Campy just released it’s 80th anniversary group.

drew - 04/01/13 - 12:36pm

a race mechanics QR gapping tools?

ant1 - 04/01/13 - 2:28pm

MS – it was supposed to be the 180th anniversary, but they couldn’t fit the three digits in there without making the chain even narrower, so they just went with 80.

Rick - 04/01/13 - 11:58pm

Lawyer tab to nonlawyer tab adapter

Kristibee - 04/02/13 - 10:41am

Answer from Jeff at First Flight Bicycles: “Suspension dropouts that mounted to the existing fork dropouts and gave some suspension action when the wheel was mounted in the adapters.”

MS - 04/22/13 - 1:20pm

Suspension? Boy, I just don’t see it. The “axle” of this piece must pass through a captive elastomer. Somehow, I don’t see the 0.01″ range of motion of this device to be noticeable compared to the 2.00″ of the inflated tire. Heck, the knobs on the tire would have more suspension effect!

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