Originally Posted by
rpenmanparker
Never.
I have saddles which have sagged with usage over time and have had to reset their height. Then a new one of the same type and model doesn't fit right at that height. Also I have two saddles of the same model and brand but with different density foam that have to be run at different heights to get the leg extension the same.
That's really true. So I would measure everything possible and try and come as close as you can to exact replication. Then do micro adjustments after a few rides.
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Two wheels good. Four wheels bad.