Originally Posted by masi61
I think there are some sound engineering priciples that went into it relating to the rigidity of the frame being enhance but no increase in harshness, maybe with a slight reduction in frame weight as well.
The sound engineering that you speak of it formation of an additional triangle. Triangles are the strongest geometric shape known. Double diamond shaped designs found on most road bikes form two triangles. The GT has three making it more rigid and stiff causing it to be more responsive.