Originally Posted by
JohnDThompson
But a longer unbraced tube (i.e., the longer seatpost required by a compact frame) is more flexible than a shorter tube.
Most folks are looking for a frame that's stiff in the bottom bracket. Flex in the seatpost doesn't adversely affect ride quality for most riders. Ridiculously long seatposts are heavier, but a couple inches longer than required for a horizontal toptube frame ain't no big deal.
I repeat, I don't care how much my seatpost flexes as long as it don't break!