I have a 1989 Trek 520 with True Temper tubing. I think this was the first year Trek used True Temper rather Reynolds 531 for this model. I would like to know whether this seamed or seamless tubing but have not been able to find much on line. If it is seamed what would it be similar in quality to? Reynolds 501? Tange 900? Just curious. Any thoughts would be very much appreciated.
I have posted pics at the following link.