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Found out a 1950s Schwinn hub cone is 0.010" off from a modern one, and I spent 3 hours chasing a wheel wobble
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ben_fisher17d ago
So the real kicker here is that nobody documents this stuff anymore. Schwinn specs from the 50s were in shop manuals that got tossed when dealers closed up. Ten thousandths is nothing on a lathe but it's everything on a bike wheel. Old hubs also had a different cone angle sometimes, so even a "close enough" cone can sit wrong in the race. Bet the wobble was never the rim at all.
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