[CR]Frame stiffness

I don't want to debate the benefits of stiffness, or the idea of measuring only the bb stiffness and making conclusions from that data, but isn't the method here flawed?

I would think the rider can generate force beyond only their body weight?

The conditions shown make it look like the flex is only a couple of mm, "so what's all the fuss about" could be someone's conculsion.

That doesn't look too "real world" to me:

http://technology.open.ac.uk/materials/bikeframes/bikeframe.html

Grant McLean Toronto.Ca

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