Originally Posted by
unterhausen
for any reasonable sized frame, sighting the head tube works fine. I say this with the notion that you are going to cut the frame into pieces later
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Hehe. Yeah I think it'll tell you if the HT is way off. The headtube is quite short so a small light gap might be hard to sight, yet it'll amount to a fair amount of twist. Besides it's better to set it right before brazing, cold setting a twist is a real pain...