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In the early 1980's Peugeot offered an internally clamping post so frame has no external clamp bolt. I have been told that over the years they have been more and more difficult to find and there are little or no manufactures that have picked up the concept - does anyone know why? or how builds these types of seatpost. —The preceding unsigned comment was added by 68.4.69.136 (talk • contribs).
- I think it works in a similar fashion to a quill stem -SCEhardT 03:48, 6 January 2007 (UTC)
Sizes
editSection on sizes should be expanded and rewritten (cannot do so myself as I am not an authority on the subject). For instance, section lists smallest common size at 22 mm, but I had worked on old Huffy cruiser tricycle (could be any brand back then — Schwinn, Sears etc.) which had 13/16 inch seatpost (.8125"). Some fellow in bike shop told me that was common Schwinn size from when back when, and Sheldon Brown lists that size as common on lesser-quality BMX bicycles. Curiously, Brown marks it as 21.15 mm, but simple math (13/16 × 25.4 mm) shows 20.6375 mm for conversion (Update: Brown could be just mistaken, as 13/16 = .8125, not .833 as he lists). theUg (talk) 00:14, 11 October 2010 (UTC)
Length
editIt would be very helpful if the article described what the seatpost length refers to; i.e., how do I determine what the length of my seatpost is? (Especially when it has an integrated seat clamp with offset.)
It is obvious what diameter refers to, but it is not obvious what length refers to.