#256
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Also,
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#257
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So given that it is part of the tension driving the bike, how do you tap it off to somewhere else or reverse it in the opposite direction when the opposite direction is slack? Your legs drive the bike, but can't drive you because you can't push a chain. I don't see how they could be. And maybe that's why you conceptualize the tension of your leg muscles as being part of some other system than the tension in the drivetrain. |
#258
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While pedaling in the manner I have described several times already, I firmly believe that the frame is flexed down at 6oclock. |
#259
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Dude:
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I have never said any part of the bike reverses its motion. I have specifically said that doesn't happen, nor is it necessary for what I'm suggesting. See post #232. Quote:
(I can hardly wait to hear the next thing I didn't say! Did I disprove Goedel's Theorem? Did I kill Jimmy Hoffa? Did I feed the whole city of New York with just a few sardines and a stale bagel? Where is this gonna end!) If I haven't made my ideas inescapably clear, call it a deficiency in my writing skill. But attributing things to me that I've never said makes it difficult to respond conversationally. |
#260
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4 o'clock for one pedal is 10 o'clock for the other pedal. Between those two peaks the BB returns to center. Which is about 7 o'clock. These are all ballpark numbers, but the point is that peak flex is when the cranks are level, and zero is the point right between them. You can't get from max on one side to max on the other without going through zero at the bottom. And we can see on video that the swaying of the BB is regular and smooth, so it doesn't flex, stay there for 90° and then suddenly pop over to the other side and stay there. It oscillates in a very regular sine wave with brief peaks. |
#261
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But if you have no ideas, then I shouldn't respond as if you do. |
#262
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When pedaling in the saddle with a good pedaling technique, sure. But that is not what I'm talking about and has never been. |
#263
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Of course, when standing, the frame is also frequently rocked back and forth, which also raises and lowers the pedals, so the dynamics are a bit more complex. But I still see no reason that the strain energy in the frame can't be returned in some useful way, if the rider has adapted their pedaling style to the frame flex characteristics. |
#264
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I don't understand why you cachagua feel the need to post what you aren't talking about. If Mark or I could tell what you were talking about the conversation would have likely been wrapped up some time ago.
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#265
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You're the one responding to stuff other than what we type about.
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#266
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On the second point- what adaptations would you suggest? Thankfully none of my frames are very flexy, but I do tend to ride like that at times. |
#267
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If you two want to come up with a theory, great. But all you're really doing is posting "I don't think so" over and over. |
#268
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#269
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#270
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I think a flexy frame wastes energy under certain pedaling styles.
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