5 Comments

  1. It’s the ring from spaceballs. May the Schwartz be with you. Sorry. Do not know what this is unfortunately

  2. SampleProfessional33 on

    An old pump mount for frame fit Silica Pumps back in the 70’s and early 80’s. You would mount it to the top tube, and many bikes had a small nub braised to the frame at the head tube. The pump with fit into the nub, and had a spring that you could compress the tail or head of the pump into that bracket.

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