I'm looking for some help with a vintage Miyata frame. The bike is a 1987 215 ST. This is the low low end touring model for that year. The bike did not come with a seat post. The posts that I happen to have lying around are to small to fit into frame by about .010 of inch. The opening in the frame is about 1.060.
the modern seat posts I have are all 1.070. Did they make smaller seat posts/frame openings back then?
Thanks for any help.
I'm rebuilding 2 vintage Miyatas. One for myself one for my daughter.