actually, this data means the s-works frame has inferior stiffness since they have the same 77 (Nm/deg)/kg. The S-works has 77(Nm/deg)/Kg*1.130Kg which equals **87.01Nm/deg** while the expert has 77(Nm/deg)/Kg*1.282Kg which equals** 98.71Nm/deg**.

Since, according to the data you provided, they have the same stiffness/weight ratio, the sworks basically sacrifices some stiffness to save weight. It's tempting to conclude that the differences in the composite technology within the two frames are nonexistent given the identical stiffness/weight ratio, but there are confounding factors such as frame design and lay-up process which likely create a non-linear relationship between amount of material in Kg and stiffness in Nm/deg. Another interesting confounding factor is that after the two frames are baked, they will receive (most likely) an identical amount of clear coat and/or finishing resin, which skews the calculations since you would have to subtract the weight of the finishing material to derive the exact differences in weight and stiffness.

Basically, the s-works is lighter and the expert is stiffer, but whether anyone without 454big blocks for legs would notice the stiffness difference is questionable.

I would like to see a frame built with 1130g(minus weight of finish) of 9m material or 1282g of 10m material, then compare stiffness to, respectively, a s-works frame or an expert frame.

**note: this is all based upon the data provided above, which may not even be correct for all I know**