Originally Posted by my58vw
Thanks for the quote... I have also noticed this on seat post lengths, the longer the seatpost the farther back the saddle is. Is this the reason that cervelo goes with such a low top tube length...?
It's not so much the amount of seatpost sticking out as it is the total length of seat tube+ seatpost. A seatpost sticking out of a 73 dgree seat tube will still be at a 73 degree angle for it's entire extended length.
The higher it goes the more setback it has. So taller guys are getting more setback naturally because they extend their seatposts more than a shorter guy would riding the same frame. The problem is manufacturers give taller guys even more set-back because they also give them a slacker STA (in most cases)
three ways to increase nose of saddle distance from BB:
1. Extend seatpost
2. Slack seat tube angle
3. Seatpost with more set-back in it
Or am I not understanding your question?