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Old 07-08-21, 11:18 AM
  #18  
Sluggo
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Originally Posted by Doug Fattic
I have an identical yellow Super Sport (as well as a matching men's) as the OP's. They were donations from a college friend with the understanding that any proceeds from their sale will go towards our charity Ukraine Bicycle Project. We make fillet brazed frames on a college campus outside of Kyiv and then build them into transportation bicycles for pastors in the eastern war zone where only military vehicles as allowed on the roads. The seat tube on the SS I'm responsible for now is also bent just like hers. This characteristic of a tube bending when other tubes are fillet brazed to it is common. You can see this often on the head tubes of fillet brazed tandems. Most people just don't notice.
[snip...]
For clarification: are you saying that this curve happens because the tube is heated on one side only?
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