Originally Posted by
rpenmanparker
There is no complication with the actual fore-aft setting or its effect on saddle height, but usually when you move the saddle fore-aft it changes your leg reach to the pedals. So you generally do need to adjust saddle height. If I remember correctly, the quick and dirty is this: for every 10 mm you go forward (backward) add 1 mm extra and raise (lower) the saddle 3 mm. The extra horizontal movement accounts for the backward slant of the seat tube. Sounds crazy but it works.
I already have the fit numbers from the Cervelo I am trying to transfer to the Scott. The problem is that with the 20mm offset seatpost on the Scott, I can't get the needed 77mm setback on the saddle with the saddle being pushed all the way back.
Originally Posted by
rpenmanparker
BTW, searpost set back and sade set back are not quite the same thing. I was a little confused by the differences between your thread title and your explanation. I think you mean saddle set back not seatpost set back.
I am seeing the seatpost referred to as both setback and offset.
So, am I correct in saying that per given saddle height and position relative to the clamp going from a 20mm offset seatpost to a 30mm offset seatpost will net an additional 10mm of saddle setback?