I’ve been looking at the same options; I bought a carbon Seatpost last year for the other brompton with a top/bottom clamping mechanism and the clamp was fine for carbon rails, just found the Seatpost unnervingly flexy.
I’d be interested in your take on whichever Seatpost you buy (if you do) as that will likely be one of my first changes.
That’s a very sensible thought process.
I’ve been looking at the same options; I bought a carbon Seatpost last year for the other brompton with a top/bottom clamping mechanism and the clamp was fine for carbon rails, just found the Seatpost unnervingly flexy.
I’d be interested in your take on whichever Seatpost you buy (if you do) as that will likely be one of my first changes.