Originally Posted by
PeteHski
Unless you are using the same saddle I wouldn't go off this measurement alone for reach as saddle nose length can vary a lot between different saddle models - easily an inch or more. So I find it better to measure from the back of the saddle...
Measure to the widest part of the saddle. Some saddles have heart shaped backs, some have tapered backs, etc. but most saddle are designed to have your sit bones at about the widest part.