[PhocusOnMy2.0LZeTeC]

I know on older muscle cars this was beneficial but is it on the zetec? Also who makes aftermarket cranks?

 

[FocusXny]

supposedly the stock crank has a harmonic resenace when lightened or knife edged.

 

[YelloZX3SA]

Either Crower or Crane makes a stroker kit, can't remember which. But I would assume that they offer a billet crank under stock specs. Although it isn't really needed.

I have heard that the Focus crank is not a good thing to knife edge.

Look at www.focus-power.com That is Tom's site...I don't think he even uses an aftermarket crank.
Worth a try to call him though.