c-zeta - fork comp
  • Fork c-zeta worked backwards is based on two excel files:
    • fkc_targetnu_bv_mv_comp.xlsx
    • zeta_backwards_fk.xlsx
  • Fork c-zeta 'aver' is based on soft-aver-stiff found in fkc target nu.
  • I actually do account for the drag.  My first description wasn’t accurate.  I actually take the bv force and mv force as calculated from the pressure data.  I create a c-zeta curve on those two forces.  When scaling for a change in spring rate I use c-zeta to reverse engineer the new bv and mv force numbers, then add 2 lbs drag.  This way I am only scaling the damping force. 
  • I also scale for different types of riding.  For example, SX needs more compression and it has to come from the damping.  This goes to my compression scale of soft-aver-stiff, with 15% increase from soft to aver, aver to stiff, etc.  The good fork setting is average.  Supermoto needs stiff+6, which is a 15% increase 7 times.  Can’t increase drag so it all has to come from the damping.
  • Summary:  I am basically removing the drag when scaling for a change in spring rate or type of riding.