Originally Posted by
Dean V
This is true, and would be a relatively simple test.
Yet I have never seen data from such a test. Manufacturers are quick to say that frame X is stiffer than frame Y but have never seen data that it will save you some Watts and takes less effort to achieve the same result.
Road tests are also quick to say how well a bike accelerates or transfers power but again I have never seen data.
I am referring to efficiency of power transfer here, not because of weight or aero properties.
I agree. All of these companies have the resources to test this. Cervelo says their new tube shape saves 8 watts from air resistance, and is 14 % stiffer; if that stiffer got you some measurable speed increase, they'd say it.