Originally Posted by
rpenmanparker
Forget the seat tube. You need to match your preferred effective top tube length and head tube length. Or better yet stack and reach.
Understood, thank you. I'll take these into account to be priority from now on.
Originally Posted by
Dopefish905
S series fits a bit small, I'm 5.10.5 and a 54 fits me perfect with a 100mm stem. I've rode other 56 frames that fit similar
What year is it?
Originally Posted by
dalava
5'10, 32 inseam, Cervelo 56cm S3 with 100mm stem fits me like a glove
32 true inseam?
Originally Posted by
StanSeven
Cervelo's website has all the measurements by size you need. Compare with the bikes you now have that fit the best. Look at them all but the important are stack, reach, and top tube length.
I've found several charts for the S3, this is the one I'm pretty sure is the right one

, but it kind of throws me off a bit. Is there a way to tell which seat tube angle it has? I thought smaller frames had slightly larger angles, which would make sense when comparing the top tube measurement of the chart given--but how do you know the angle of a given 58 cm frame?
[HR][/HR]
Anyway, thank you everyone for your replies.