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@Westbrook
There has been some questions about the structural integrity of the rear brake bridge on the Kirk frame.
I did check the frame again and the brake bridge seems solid, two pins are visible both sides into the seatstays. Looks like its factory pinned and bonded. No movement is visible when flexing the back end by hand but hard to say whats happening at a microscopic level.
Looks like paint is cracked where it is covering the join between brake bridge and stays due to bad paint adhesion at the join rather than anything structural. The pinned joint, metal and bond looks solid.
I was planning to sandblast it prior to a complete respray but sadly have no time now!