Clearly.

Do you really feel their cranks flex when they pedal? I do a short, 2 or so mile climb on my morning commute every day, and every day I get down in the drops and try and sprint up the whole thing, and I can't say I've ever felt any kind of flex with my sugino RDs, my Sakae cranks on my road bike or the no-name straight 170 cranks on my conversion. Handlebars, yes, constantly, but cranks? Not in my experience. I don't mean this to sound like a challenge, or to solicit all kinds of ******baggy responses, I'm actually curious.