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Does a 1.5" threaded steerer fork = 44mm head tube?

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Does a 1.5" threaded steerer fork = 44mm head tube?

Old 05-17-16, 09:39 AM
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skygao
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Does a 1.5" threaded steerer fork = 44mm head tube?

I'm considering ways to restore a Yokota Twin Peaks tandem (late 80s or early 90s, unsure). One of the interesting details is that the frame uses a 1.5" threaded steel fork. As you can imagine, finding replacement parts for this mostly shot headset isn't the easiest.

Would it be reasonable to assume a 1.5" steerer indicates a 44mm head tube and compatibility with new 1.5" treadless headsets and forks? Or was there perhaps an older standard I can't seem to find details on?
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Old 05-17-16, 11:02 AM
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Leebo
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Are you replacing the headset and the fork?
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