Oops! I went downstairs and checked, and what I have is a 500, not a 520, but IIRC the difference between the bikes back then was just the gruppo; the frames were identical (I remember this because Rich Welty bought a Trek at the same time and he got either the 520 or the 530 and we spent a fair amount of time comparing the glossy brochures, which seemed to indicate that a 5{0|2|3}0 differed only in what got bolted on.
Re: Trek 520! Great bike 30 years ago, probably still pretty good.
is a 500, not a 520, but IIRC the difference between
the bikes back then was just the gruppo; the frames were
identical (I remember this because Rich Welty bought
a Trek at the same time and he got either the 520 or
the 530 and we spent a fair amount of time comparing
the glossy brochures, which seemed to indicate that a
5{0|2|3}0 differed only in what got bolted on.
At least, that's what an old memory says.