Originally Posted by
rm -rf
Yeah, I've seen lots of new high end bikes with a 27.2 seatpost. A few years ago, the conventional wisdom was that seatposts just didn't affect ride comfort at any noticeable level, either aluminum or carbon posts. Now, just in the last year, all the bike review sites can tell the difference between 31.8 and 28.2 posts.
The bikes all have newer model saddles, and some have 25c tires. Both of those things would make a bigger difference than a seatpost.
You asolutely right that they all make a difference. But it's the sum of the differences we are talking about here. How low of a psi can you go before you start effecting performance? The point of a flexible/more compliant design is that you don't have to make adjustments to other parts of the bike and its built into the frame.
an ISP is not for everyone. But it's pretty ignorant to say a design is flawed if you haven't experienced it.
i travel with my bikes, my scicon bag doesn't require me to drop or remove the seat post.