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LeBlaireau
Got a new bike with 12s di2 - battery in fsa branded battery holder which understandably fits beautifully in the supplied carbon fsa seatpost.
Was keen for matching reasons to use the hope carbon seatpost which I already own. While also 27.2mm and circular (by eye will check with calipers) the internal diameter (ID) is a bit smaller (thicker carbon) and the FSA holder 'just' doesn't want to go in.
Was hoping someone on here might have a recommendation between the alternatives (shimano, ritchy, deda, m-part) as to which might be better for a narrower ID seatpost. Spending £10 a go to find out is not that appealing!