Hi,

Would you do a standard DOE or a Taguchi DOE? You need to determine the relative sensitivities of the output, vibration, against you variables at different levels. It would be interesting to see if frame geometry is a greater influence on ride comfort than material.

Also for a given geometry, how much influence does bottom bracket and chainstay stiffness have on comfort? Are seat stays the primary influence on comfort as Cervélo would have you believe with their R3 design?

Wounds like a challenging analysis even with a relatively simple system.