I recently purchased an original SOMA prestige from the early 80's. It was all original down to the tubes and tires. Noticed some curious things I haven't seen before and was just wondering what the idea was about since I haven't seen anything like it on any of my newer bikes.
First, the rims are aluminum 27" with presta valve openings. The tubes were 700x1 tubes with presta valves.....interesting. Was this common on nicer Asian made bikes of this era?
Second, the tubes were coated with a weird orange colored wax of some sort. It was only on the outside edge of the tubes...the part that sits next to underside of the tire tread. What was the purpose of doing that?