date codes for 1981 Miyata 610
I'm overhauling my 1981 Miyata 610. While it's apart, it would be easy to post date codes of components. I know that some people like to collect that kind of data.
Everything's off the bike except the headset (letting lbs do it) and bottom bracket(replaced last year).
I'm updating safety equipment, such as brake levers and pads. I'll be adding a Nitto dirt drop long stem and Brooks B17 for comfort. Otherwise, it's cleaning, lubing, new cables and the like.
I'm going to be asking a lot of questions, so I'd like to contribute a little.