Originally Posted by
Kapusta
Look, I know branching conversations are hard to follow when they are all displayed in linear mode, but please try.
There IS in fact discussion and disagreement about how efficient of a spring a bike frame is, as that DOES in fact make a difference in how efficient it is overall is one buys into the idea of planing.
Again, the efficiency of a frame "spring" is only meaningful if you include the rider as part of the system, because introducing a rider adds (a lot of) damping. Conclusions based on the behavior of an isolated frame are worthless.