Possibly the king of tubesets, certainly one of the most popular for high-end frames built since its introduction in 1935. Now phase out because of changing maunfacturing techniques (it can't handle the high heat used in MIG and TIG welding), the 531 sticker is still the mark of a fine bicycle.
You like a different colour T? Men doesn't adequately describe your gender? give us a yell: firstname.lastname@example.org
That's the thing about one-off, it's one-off. And we can do anything you like.