Originally Posted by
Spaghetti Legs
I'm not sure I've been able to tell a difference between ride qualities of my different aluminum, Ti, CF posts. any difference in ride qualities I'm sure I would ascribe to the bike and not the post. I think titanium probably is used more for weight savings than any other reason, I would also think that the carbon post on your Trek would contribute very little to absorption of road chatter compared to the steel frame/fork and cushy tires. That's just my $.02 though.
Not sure either, but agree that frame flex and tire selection/pressure are the main considerations... and what led to my fascination with Trek's Tri Series trifecta: longer chainstays, clearance for 32s and flexy pipes
. Would be curious to see more exhaustive studies on seatpost dampening. The only one I recall is
Zinn's 2012 VeloLab test.