Saddle Questrion
 

Anyone know if a saddle's setback remains the same, regardless of the saddle's length? (270mm, 275mm, 290mm, etc., long saddles)

Saddle setback is the distance from the center of the BB to the nose of the saddle, measured horizontally.

In other words:
If you normally run a 5cm setback with a saddle that measures 270mm long, would that value change when running a saddle that's 290mm long? Would a longer saddle change your saddles setback, or, is setback ONLY governed by the saddles inital shape?


Thanks

Anyone know if a saddle's setback remains the same, regardless of the saddle's length?[/quote]

No it does not. I've even had to adjust that measure swapping between two saddles of virtually the same length.

BB to saddle tip measurement only really means anything if using the same exact saddle.

Double post eh?
http://www.bikeforums.net/showthread...9#post14300639
No, You need to Turn the saddle over.. and look
It is more about the length of the support rails straight parallel section,
extending further into the nose of the saddle offers the ability
to adjust for more setback.

Or you look for a different seat post with more set back
due to the design of the upper portion of the part.
when the saddle will not shove back far enough on the rails.

The way I set up a new saddle is by starting at the beginning of the process on a trainer.

Adjust saddle height so there is about a 25 degree bend in my leg at extension during the pedal stroke.

Adjust fore and aft position of the saddle by using a plumb bob to position the point just below the kneecap directly over the pedal spindle when the crank arms are in the 3/9 o'clock position.

Adjust to the reach I want by using the correct stem length.

This process will get to a good starting place for micro adjustments. It is also the process used by a lot of bike fitters. Sometimes, if things are not feeling quite right on one of my bikes, I'll go through this process just to make sure every thing is close to the way I set it up originally.