Originally Posted by
cadillacmike68
That's definitely an older gen Record.
27.2 is a normal clamp size for NR / SR front changers at least by 1974. That's what I have. I think there were 3 different tube sizes over the years.
I don't think so. I am not aware of any 27.2 OD seat tube. 28.6 (Imperial) and 28.0 (Metric) were the standard OD for Reynolds 531. Columbus only made 28.6 OD (for SL/SP).
27.2 is standard ID size for Imperial seat tubes, with 27.0, various 26.x and 25.x sizes for sleeved seat tubes and thicker wall tubing.
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