Originally Posted by
Fiery
Are you using different saddles on different bikes or you have fairly short saddle rails? Half a degree in seat tube angle equates to roughly 5 mm difference in setback, not that much.
Not disagreeing with you in any way, to be clear. I also pay a lot of attention to seat tube angle when checking a new bike because even half a degree can be a lot depending on which saddle I intend to use and what seat post options there are available for the frame. Still, going from slammed backwards all the way to slammed forwards seems unusual for such a small difference in angle, so I'm just wondering on the details of your two setups.
The saddle is the same (Airone Evo) on both bikes. The adjustment range on it isn't the largest, so it's not as extreme as it wounds. But the difference between the two is larger than I was anticipating, as well. I was expecting it to be in the 5-10mm range, and it ended up being about 20mm