Bike frame stiffness: Why it matters and all you need to know

Re:Bike frame stiffness: Why it matters and all you need to ... by giuliomagnifico on Wednesday December 21, 2022 @12:45PM (#34083878)

Yes but it returns the power when your pedal is at the “death point” and you aren’t making power on the frame, then the power is dispersed through the frame flex when not needed. The frame should be soft vertically on the seat tube.

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Re:Bike frame stiffness: Why it matters and all you need to ... by rhn_mk1 on Wednesday December 21, 2022 @01:04PM (#34084128)

I'm not sure if I see it. If you're not putting a force on the frame, then the frame is not bent, and it doesn't return anything. You have to push in order to recuperate the energy.

If you remove the force so fast that the frame doesn't have the time to return the energy back to you, then it will disperse the energy by ringing. But i don't think it's realistic unless you drive your pedals with hammer strokes.

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Re:Bike frame stiffness: Why it matters and all you need to ... by zardo on Wednesday December 21, 2022 @03:41PM (#34086120)

You also have the possibility of transferring that energy into tire deformation and heating.

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Re:Bike frame stiffness: Why it matters and all you need to ... by zwieback on Wednesday December 21, 2022 @02:50PM (#34085506)

I would think that most of the energy goes in between 12 and 3 o'clock and then flexes out from 3 to 6. So if the flex pushes back against your leg a good part of the energy should go back on the road.

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