The 1st time we see this type of carbon Miyata appear is in the 1987 catalog. You are familiar with this Miyata catalog link? >> http://www.miyatacatalogs.com/2007/12/m ... -1988.html
In the 1988 catalog we also find a write up on the structure for the Miyata tubing. There are many layers fibre sheets in multiple directions, but there is also a special quality steel wire used in the construction.
Koga-Miyata had an equivilent model called FullPro-AC in 1987. You can view it in the catalog on their site. I am sure only a handfull sold.
I understand this type of frame was replaced in 1989 by a new carbon offering. Easy to recognize by the internal brake cable routing. A 1989 Koga-Miyata Pro I saw advertised locally recently. They are rare, but not as rare as the earlier ones.
Below shown frame is from 1991. You see the cable routing moved to on top the toptube.
For 1993 this frame was redesigned. It now got a slim monostay and the brake cable stops were neatly integrated in the head- and seatlug. About a year ago I offered a NOS issue of this frame through Retrobike. Model RoadWinner.
The FullPro models were raced by both Koga's own amateur team and the Tulip computers pro team.
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