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Pros and Cons of Aero Bikes (vs. Road Bikes)

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Pros and Cons of Aero Bikes (vs. Road Bikes)

Old 04-06-14, 11:22 AM
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Originally Posted by asgelle
Actually, people are routinely field testing all sorts of aero equipment (so much for the too small to measure fallacy) and finding the major manufacturers (Felt, Trek, Cervelo, Zipp, Reynolds, etc.) claims pretty much spot on.
Oh whatever. The advantage is allegedly 1.1 minute in a 4 hour time trial for the favored frame in the Cervelo test, a 0.4% difference in speed. Half of the "aero" frames tested were on par with the non-aero frames. Those results tell me the alleged benefits are not statistically significant.
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Old 04-06-14, 11:42 AM
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I wonder what the big manufacturers are working on right now for the 2015 models that will make them so much better than this year's 2014 models. I mean, every year they tell us the new frames are significantly better and faster. Pretty soon you will barely have to pedal to average 25mph. Remarkable engineering going on in cycling.
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Old 04-06-14, 11:53 AM
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Originally Posted by pgjackson
I wonder what the big manufacturers are working on right now for the 2015 models that will make them so much better than this year's 2014 models. I mean, every year they tell us the new frames are significantly better and faster. Pretty soon you will barely have to pedal to average 25mph. Remarkable engineering going on in cycling.
I sure hope it's a bike to go with the new helmets.

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Old 04-06-14, 12:59 PM
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Originally Posted by asgelle
And evaporation/condensation will alter the mass.
No. Changes in surface conditions have significant effect on drag. Vibrations are one of several real world differences. Wind tunnel testing is the starting point, not the end.
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Old 04-06-14, 01:17 PM
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Originally Posted by pgjackson
I wonder what the big manufacturers are working on right now for the 2015 models that will make them so much better than this year's 2014 models. I mean, every year they tell us the new frames are significantly better and faster. Pretty soon you will barely have to pedal to average 25mph. Remarkable engineering going on in cycling.
Aero frames are like ford engines......they come out with a new one every year because they can't built one that actually works.
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Old 04-06-14, 01:30 PM
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Originally Posted by Jiggle
Oh whatever. The advantage is allegedly 1.1 minute in a 4 hour time trial for the favored frame in the Cervelo test, a 0.4% difference in speed. Half of the "aero" frames tested were on par with the non-aero frames. Those results tell me the alleged benefits are not statistically significant.
That word you use, I don't think it means what you think it means.

Those data may say many things. They may say the differences are small, they may say some frame designers aren't very good at their job, they may say you really don't care about the drag from your equipment. One thing they definitely don't say is anything about their statistical significance.
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Old 04-06-14, 01:41 PM
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this thread is boring, almost as boring as this post

you're all too damn slow to care about this crap. im faster than nearly all of you (all of you?) and i dont care about this crap
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Old 04-06-14, 01:42 PM
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^
replace "thread" above with: "subforum"

peace


EDIT: well that may have been a little harsh, but I'm hungry! (read: hangry). There are some users in the 41 that contribute useful, meaningful content that I respect.

But I still assert that this thread sucks! Aero frames aren't even worth the energy it takes to acknowledge them IMO. That's not to say I wouldn't purchase one, for the right price, I just wouldn't pay attention or give credence to the fact that it was "aero."
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Old 04-06-14, 03:09 PM
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Originally Posted by TMonk
this thread is boring, almost as boring as this post

you're all too damn slow to care about this crap. im faster than nearly all of you (all of you?) and i dont care about this crap
Ok, prove it. What is your average speed?
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Old 04-06-14, 04:32 PM
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warp speed.
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Old 04-06-14, 04:32 PM
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Scratch that, my training was great this pre-season, im gonna go with 1.3xWarp Speed
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Old 04-06-14, 04:44 PM
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Originally Posted by TMonk
Scratch that, my training was great this pre-season, im gonna go with 1.3xWarp Speed
No wonder you don't care about aerodynamics. There is no wind resistance in space.
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Old 04-06-14, 04:57 PM
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No silly, I ride a bike near sea level just like the rest of us. The only difference is, like few, I travel greater than or equal to warp speed.
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Old 04-06-14, 05:23 PM
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Originally Posted by TMonk
No silly, I ride a bike near sea level just like the rest of us. The only difference is, like few, I travel greater than or equal to warp speed.
Incorrect. In our atmosphere you would burn up like a meteor at that speed. You have the wheel size on your computer set wrong.
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Old 04-06-14, 05:58 PM
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Damnit! I knew it seemed too good to be true...
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Old 04-06-14, 06:39 PM
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Pros: for the average rider (ie: most of us)....none, other than bling factor.
Cons: Market hype with no appreciable benefit for normal humans (ie: most of us).
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Old 04-06-14, 07:10 PM
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Originally Posted by canam73
I sure hope it's a bike to go with the new helmets.

This stupid picture made me just buy aero gloves. Damn you guys.
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Old 04-06-14, 08:38 PM
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Originally Posted by Silvercivic27
This stupid picture made me just buy aero gloves. Damn you guys.
Those gloves are versatile. They work regardless of how many fingers you have.
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Old 04-06-14, 09:00 PM
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Originally Posted by StanSeven
Those gloves are versatile. They work regardless of how many fingers you have.
I'm not so sure. I believe if you have more than 2 the drag is so much that you are below that speed threshold where aero benefits exist.
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Old 04-06-14, 11:19 PM
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Originally Posted by asgelle
That word you use, I don't think it means what you think it means.

Those data may say many things. They may say the differences are small, they may say some frame designers aren't very good at their job, they may say you really don't care about the drag from your equipment. One thing they definitely don't say is anything about their statistical significance.
No, there are tools. the p test of significance and chi squared test. There is also the common sense tool - how coincidental that the Cervelo frames came out on top in each category even though the differences were so small. Smells like fudging.
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Old 04-06-14, 11:21 PM
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Originally Posted by TMonk
this thread is boring, almost as boring as this post

you're all too damn slow to care about this crap. im faster than nearly all of you (all of you?) and i dont care about this crap
I suspect less than 1% in the 41 should care about aero. The rest of us are too slow.
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Old 04-07-14, 01:14 AM
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Originally Posted by zymphad
I suspect less than 1% in the 41 should care about aero. The rest of us are too slow.
I suspect anybody who wants to care about aero should care about aero.

There's plenty of data that states how large or small the benefits are, and if those matter to you, great...I don't see why somebody who only puts out 200w shouldn't care about 3w more.

I can tell the aero difference between my helmets using a powermeter and GC's Aerolab. It's consistent, and measurable, and I'm not anywhere near pro. It matters to me because I'm trying to optimize a system for optimizations sake. Obviously bike frame tubing shapes are less important than the helmet, but it's still a part of the puzzle.
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Old 04-07-14, 04:38 AM
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Originally Posted by zymphad
I suspect less than 1% in the 41 should care about aero. The rest of us are too slow.
The outward curvature of my belly makes me more aero. If it were flat, it would create more drag. That's my story and I'm sticking to it even if you say I'm too fat for this sport.
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Old 04-07-14, 08:33 AM
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Originally Posted by himespau
The outward curvature of my belly makes me more aero. If it were flat, it would create more drag. That's my story and I'm sticking to it even if you say I'm too fat for this sport.

That could work, but I think you would need to balance it with an equally sized ass. You need a smooth transition to the trailing end, too. Kind of like 23mm tires on a 23mm rim.
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Old 04-07-14, 09:15 AM
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Originally Posted by canam73
That could work, but I think you would need to balance it with an equally sized ass. You need a smooth transition to the trailing end, too. Kind of like 23mm tires on a 23mm rim.
Wouldn't a bigger ass be better? Start with the head, then wider shoulders, followed by belly and finally a huge ass. Seems like the perfect shape
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