Originally Posted by GMaxx
I just picked up a miyata seven twelve (number is written not 712) for $110. From what I have read this must be an 87/88. It is full 105 with biopace rings. Its a six speed cassette and has the break cable routed inside the top tube. It is black with a teal front end if that makes a difference. I think the tires may even be original, they are labeled miyata. the bike looks like it was not ridden much at all but lubed with motor oil.
My question is does the written number mean something in terms of what year it is?
any insight would be appreciated.
G
Sounds like a nice bike. Post pics, we all love bike porn!
Does the tubing sticker say Spline Triple Butted? That was their top of the line tubing I believe. If T-Mar does happen to see this thread, I think a Serial Number might help him, though I'm not sure he's compiling a database of SNs for Miyata. I believe he is also agreeable to private messages if you really want to know.
In the meantime, look for a two letter code on the back of your front derailleur cage or rear derailleur body (not VIA, but some other stamped two letter code). Then look
here and compare. I'm guessing your components are original to the frame. This will give you a better idea of age.