Quote Originally Posted by sk_tle View Post
What makes you think this energy is simply saved and not dissipated? Somehow it can't store energy forever and I don't see how a frame would have any mean of giving back that energy to propel the crank or wheel. I know that in magazines so called journalist try to make us think that this energy is stored then redelivered to the rear wheel at some point but it is simply not true or I can't think of a way it could be true. Did someone check the temperatures variations of a frame ? Could it really be measured ?
I would suggest the energy is transferred into heat but because the amount of energy is so small the amount of heat produced would be almost unmeasurable. IMHO.