Originally Posted by bigbossman
Nice work!!! It seems my bike is well represented in photo's already. If you require more or better ones, just let me now.
So - from your excellent work I can assume my bike is probably a 55cm Professional (5A), and was built in 1984 ("Z" on the BB shell, as well as "PAT 84" on the RD).
'84 or '85. I don't like to be nailed down to a specific answer. Now I have 2 chances to be right. If only life normally worked like that...