I for the life can seem to go over 70 cm, with around 8 cm seatback, other wise I have lots of pain in my lower hamstring and the outside of my knee?
Your flexibility ?
Your riding position ? Stretched out ? Upright ? Compact ? It will affect how your legs are stretched while riding, thus affect your seat height.
Your pedal system ? It will affect your stack height and can shift your seat height by a few millimeters.
Saddle used ? Some sag more than others and thus will also affect your seat height.
Seat-tube angle of frameset ? It will affect how far back you are on the bike, and in effect your seat height too.
I think this is a great post regarding seat height: http://www.stevehoggbikefitting.com/blo ... can-it-be/.
I also have 79cm-ish inseam and I run a 70cm saddle height, but I have relatively large feet and thick-sole shoes so those must be taken into account.
All in all there is no universal law can be applied in bike fitting.
im still trying to figure out why my left leg is trying to move forward more then then left. I just put 3mm of spacer under the cleat and will report back to tell you if it makes a differance, do you guys know if a narrower saddle would help me be more balanced? I have a romin evo pro 155, and I do love the comfort of it
Given all the variables, being critical of one formula or another seems like a huge waste of mental energy. Raise your hand if you think it reasonable to expect any generic formula to be more accurate than +|- 5%...
You should expect a well trained fitter to get it dead right...
You should expect an Internet chat about it to be roughly the same accuracy as a dice role with one of these...
If I lived some place near you, that would be the shop I used (when I wasn't still ordering from Fairwheel)
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