> I believe Columbus (?) KL tubing used 27.4 posts
>
> Mark Hoffman
> New Britain, CT
most handbuilt, silver-brazed columbus sl-tubed frames actually need a 27.4 seatpost and the same type of frame with an sp seat tube take a 27.2 because the tube does not ovalize much if at all with the careful, low-temperature construction. brass-brazed, production-type, overcooked frames with sl seat tubes use a 27.2 and sp a 27.0.
many if not most of the ill-fitting seatpost issues with high-end handbuilt columbus sl and sp frames come from the fact that some builders may not have been aware of need for the slightly larger seatpost.
'spiney' norman neville new wavin', ct
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