Joined: Dec 2008
Posts: 1,794
Likes: 83
From: Sendai, Japan: Tohoku region (Northern Honshu))
Bikes: Vitus 979, Simplon 4-Star, Woodrup, Gazelle AB, Dawes Atlantis
Peugeot made jillions of bikes using their seamed "Carbolite" tubing
In the case of the Reynolds seamed tube, the specifics of it allowed for speeded mass production — for one thing — by virtue of how it reacted to applied heat from brazing. I suspect that the lugs used could make more of difference than the disparities between extruded and seamed tubing. However, I can't speak to tubing that shows the seam. I for one would interested in a picture if it were clear enough. Might be cool for the archive too.
sailor ... is that possible?
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Vitus 979, Simplon 4 Star, Gazelle Champion Mondial, Woodrup Giro, Dawes Atlantis