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Old 09-21-08, 11:10 AM
My bikes became Vintage
Join Date: Aug 2005
Location: Ontario, Canada
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Originally Posted by top506 View Post
Concur with T-Mar. All 5 Miyatas that I've owned took 26.8mm seat posts.
I have a mid-eighties ladies' Miyata 310 with the seat post stamped 26.7, about 220mm long. The sticker on the seat tube says "MIYATA Cr-Mo CHROME MOLYBDENUM DOUBLE BUTTED TUBES" but I don't have any gauges handy to see if the seat tube is butted at the top. The "upper downtube" on these frames joins the seat tube just below the mid-point. I expect ladies' frames are the exception to the rule.
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