So i have a gazelle champion mondial that i've measure the seatpost as a 27.0 with a very lousy set of calipers. and by lousy i mean.... it's marked off to the nearest millimeter. I've seen references here to them having 27.2 mm seatposts. I'm working with a 531 DB tubeset as far as I know and a variant of an AA frame.
Does anyone have one with a 27.0?
i've put a 27.4 at the hole and it comes no where close. the only other thing i have is a 26.something and it's way too small.