K
Konstantin Shemyak
Guest
Why most seatposts are made with some setback?
Clearly the same rider's position could be achieved with slightly
less steep seat tube and no-setback seatpost. Looks like "straight"
posts are marginally lighter/stiffer, naturally because there is
no extra material and because there is less leverage applied when the
rider is positioned closer from the post axle.
I guess that in days of old when there were only plane pipe seatposts
the setback was there because there was no other seat clamping
mechanism (or was it?); but now is it dictated by anything else
than traditions in frame geometry, with steeper than needed seat tube?
Thanks!
Konstantin.
Clearly the same rider's position could be achieved with slightly
less steep seat tube and no-setback seatpost. Looks like "straight"
posts are marginally lighter/stiffer, naturally because there is
no extra material and because there is less leverage applied when the
rider is positioned closer from the post axle.
I guess that in days of old when there were only plane pipe seatposts
the setback was there because there was no other seat clamping
mechanism (or was it?); but now is it dictated by anything else
than traditions in frame geometry, with steeper than needed seat tube?
Thanks!
Konstantin.