Really? I just guessed 27.2. To me those clusters look as if like they're built to take an aero post, then filled in to put a round one in. Just looks ugly to my eye...
It looks like someone just stabbed a seat post into the top tube.
That's exactly what it looks like.
@Jezston started
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Really? I just guessed 27.2. To me those clusters look as if like they're built to take an aero post, then filled in to put a round one in. Just looks ugly to my eye...