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Non level rear dropout
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06-16-25 | 06:20 AM
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sd5782
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1964 Huffy Sportsman, 1972 Fuji Newest, 1973 Schwinn Super Sport (3), 1982 Trek 412, 1983 Trek 700, 1989 Miyata 1000LT, 1991 Bianchi Boardwalk, plus others
Non level rear dropout
I am a C&V poster, but thought I might get more advice here. I recently purchased 2 bicycles that it seems came from Scotland. Research and correspondence pretty much confirm them to being built by Andy McNeil from Glasgow. I started a C&V thread;
New Bike(s) day
So I disassembled the green bike. It was a mix of parts but seemed interesting. Looks like Reynolds 531 throughout. I did put a string on the frame to use my little knowledge for a rudimentary frame alignment check. This came out seeming straight and the rear Zeus dropout spacing is about 125mm and seemed pretty square. A wheel put into the frame however doesn’t sit square in the frame. This test wheel is true with good dish and flipping it gives the same results.
This seems to be a pretty nice frame. Putting a 3/8” aluminum rod in the dropouts and siting from the back shows the rod to be not on the same level as the BB. It would seem that the nds sits ever so slightly lower. I was wondering what an actual frame builder would do that was non destructive. My thought is filing perhaps 1mm off the upper side of the left dropout, but that isn’t really non destructive. Would this be something that a frame builder would put in a jig to bend to straighten? Any advice appreciated.
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