I've found 54/13 (I think) works nicely.
That might explain it.
I had a Moulton with a fixed drivetrain, similar to the gearing of the seven gods (67GI), and it was fustrating being spinny and bouncy, it felt like there's a dead spot in every stroke.
Your high gearing may have reduced that considerably.
Yeah - I found it surprisingly smooth and very uncharachteristically Brompton bouncy spinny!
Ordered a 40t chainring, that'll bring the top gearing down to under 67GI.
@Dick started
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That might explain it.
I had a Moulton with a fixed drivetrain, similar to the gearing of the seven gods (67GI), and it was fustrating being spinny and bouncy, it felt like there's a dead spot in every stroke.
Your high gearing may have reduced that considerably.