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Going from X/Y to Stack/Reach
I have an older fit bike that gives X/Y coordinates and I just did the F.I.S.T. certification.

So after my first test fit on one of my athletes, I got

x=535
y=530

And if I plug it into http://www.slowtwitch.com/.../bar_bore_calc_X.php

I get
Input Bar-Bore Y 530mm Bar-Bore X 535mm Head Tube Angle 73° Stem Length 100mm Stem Angle -17° Stem Clamp Height 40mm Spacer Height 10mm Headset Topcap 5mm
Output Stack 497mm Reach 445mm
The athlete, prior to the fit, has already purchased a 2012 Cervelo P2 size 51. Stack 482 and a Reach of 405

http://www.slowtwitch.com/....html#Anchor-CERVELO

My question is this. Stack looks good, but the reach of the bike seems to be shorter than recommended and I already used a 100mm stem to compute Stack /Reach. So does the athlete simply longer stem?
Last edited by: hanijuha: Dec 2, 12 12:25

Edit Log:

  • Post edited by hanijuha (Big Pines) on Dec 2, 12 12:25