A very informative discussion of CF as a bike material.
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A very informative discussion of CF as a bike material.
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Why this guy again? The only video of his that I've seen is his "analysis" of Froome's comments on disc brakes and that was such a thorough waste of 5 minutes that I have a hard time believing that this 20 minute video is going to be worthwhile. If you're going to post a lengthy video, why not at least kick off the discussion with a TL;DW on what you believe to be the salient points?
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I watched the first 30 seconds and didn't see any listing of his qualifications as a materials scientist and bike designer.
Not gonna commit any more time than that.
Not gonna commit any more time than that.
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It's not about credentials it's about the quality of the content. I like Peak Torque he makes great videos and if you want to quibble he responds to comments.
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I hope people have learned, especially in this past year, to leave science to the scientists. If we start trusting the amateurs, we'll be doing crazy things like injecting bleach.
Last edited by Koyote; 02-16-21 at 07:25 AM.
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In my world, expertise still matters -- especially when it comes to highly technical (scientific) topics. I'm not qualified to judge the veracity of this guy's statements (and I'll bet most bf'ers aren't qualified), and so it is all the more important that an analyst's qualifications be vetted...Which is something that we can all do.
I hope people have learned, especially in this past year, to leave science to the scientists. If we start trusting the amateurs, we'll be doing crazy things like injecting bleach.
I hope people have learned, especially in this past year, to leave science to the scientists. If we start trusting the amateurs, we'll be doing crazy things like injecting bleach.
There's nothing in this video that you can't check for yourself. I saw it when it first came out some time ago and IIRC it's about the stiffness of carbon fibre and how that arises from the epoxy and the fibres. He covers layup and mentions how manufacturers exaggerate stiffness.
At no point does he suggest we should inject ourselves with bleach. So that's a good sign.
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By the way: if you go to the video's youtube page, right at the top there are four corrections of instances in which he uses the wrong technical terms. That's not encouraging.
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I listened to it (using Youtube premium and just listen to various cycling videos while driving) and, frankly, meh - the gist of it is that CF isn't as stiff advertising would suggest and advantage over metals can actually be pretty small. I didn't find it particularly interesting, to be honest.
Some of his videos are properly informative and interesting, some aren't. The analysis of what goes on with the new Canyon Aeroad seatposts is interesting to watch, for instance, for a dissection of an engineering ooops.
Some of his videos are properly informative and interesting, some aren't. The analysis of what goes on with the new Canyon Aeroad seatposts is interesting to watch, for instance, for a dissection of an engineering ooops.
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The name of his channel is vaguely technical and, out of his two video thumbnails that I've seen, both have contained images of math/equations. The math in the video that I've watched, however, was pretty simplistic and the conclusion was laughable. I get the impression that he's either trying to fool viewers or that he's successfully fooled himself.
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I listened to it (using Youtube premium and just listen to various cycling videos while driving) and, frankly, meh - the gist of it is that CF isn't as stiff advertising would suggest and advantage over metals can actually be pretty small. I didn't find it particularly interesting, to be honest.
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I have no fancy math behind this, but honestly having ridden bikes made of aluminum, steel, titanium, and carbon fiber, I think the truth is all of these are viable frame materials. And I expect ride "feel" depends more on geometry and especially wheels/tires/tire pressure rather than the actual frame material.
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Too soon to tell. Need more data.
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Is there a materials scientist in the house? I always find critiques of these types of videos to be of higher value when made by someone with a background in the subject. If you have that kind of background I'd welcome your comments. I'm interested in the subject but it is not my area of expertise so I won't be making judgements.
Last edited by bruce19; 02-16-21 at 09:05 AM.
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I do know that, within my area of expertise, I can talk for far longer than twenty minutes without making a substantive error that requires later correction. But then, I have a bunch of those silly, irrelevant "qualifications."
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So you'll neither make judgement nor even comment on why you think it's noteworthy? So why post the video? So others can chew on the video and mama bird/baby bird it for you?
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Ha! The scourge of my own field: people who've read all of the literature and done none of the work posing as experts, and the people who worship them.
Last edited by mdarnton; 02-16-21 at 09:54 AM.
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I have no fancy math behind this, but honestly having ridden bikes made of aluminum, steel, titanium, and carbon fiber, I think the truth is all of these are viable frame materials. And I expect ride "feel" depends more on geometry and especially wheels/tires/tire pressure rather than the actual frame material.
Last edited by seypat; 02-16-21 at 09:48 AM.
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