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To Kiley, and the rest of the crew at A2
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i haven't seen the data and obviously nobody has seen the write-up but at first blush, from what i can see: bravo. you guys did a really nice job. thanks for your hard work.

i'm sure my reticence, caveats and stated concerns made your lives harder. to the degree that made the test better, then great. to the degree it didn't (because it was going to be well done anyway), i regret that.

if you don't mind i'm going to make the following guesses, proclamations, statements, predictions (we'll see if i turn out to be right):

- to brian and heath who, by all accounts i've heard, produced an excellent test, i suspect you have a new revenue stream if you want it. just, i'll bet it's a lot more nerve wracking and exacting testing 5 bikes with the same position than testing 5 positions on the same bike.

- to kiley: my posture as moderator here has always been consistent: i stand up for the folks on the inside who do the hard work (harder work than those on the outside ever suspect). you're on the inside now, which means i'll stand up for you when those on the outside take unfair shots at you (at least as regards this test!).

- about that P5X, which you didn't want to take to the tunnel because it was obviously no match aerodynamically for the other bikes, i'll be interested to see if you still feel that way once the test is published.

- same for disc brake tri bikes. i'll eat my hat if the disc brake bikes, as a pair, test more than 2 watts slower than the 2 best disc rim brake bikes you tested, in a blended sweep, and normalized down to 24mph (where people actually ride their bikes).

- there are no dogs when you get to the pointy end. bike makers today know what they're doing. i suspect that tire choices, and matching the best tire shape to the wheels you own, ends up making as much more more difference than the best frame to the worst frame among the new bikes tested. (we'll see if i just embarrassed myself with this statement.)

- i would also bet that the bikes are so close that hydration and storage preferences, ability to work on these bikes, travel with them, overwhelm the aero differences and (along with price, ability to obtain the bike, warranty, ability to test ride the bike) become the purchase imperatives.

- and finally, kiley, your cockpit is too long. this didn't matter in the test, because your cockpit was universally too long. but your position could use a little fiddling in my opinion. once it's dialed, THAT will make more difference than which of these 6 bikes you're riding, which is why i scratch my head at the keen interest among consumers in buying this versus that bike, in light of the fairly cavalier approach by so many users in how to ride properly on the product.

it was fun to watch. once you guys recover you ought to do it with helmets, where i suspect you might see a larger delta between the products than you may have seen with these frames.

Dan Empfield
aka Slowman
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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I am just going to predicted that all the test show all bikes are within 1% of each other! Thanks for testing guys! Bravo.

Would have loved to have seen felt and dimond in the mix to, but always limitations.

2024: Bevoman, Galveston, Alcatraz, Marble Falls, Santa Cruz
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Thanks Dan. We learned a lot and will be sifting through this data for a while. I'll just urge everyone to be patient while we get it all in a presentable form and make sure triple check our work.

And yes, it was more nerve wracking in some ways to make sure everything was consistent. Luckily Dan, Kiley and Jimmy made sure everything was measured ahead of time. Kiley also rode like a champ and rock solid all day. In other ways it was more relaxed, doing a long yaw sweep with rider on and off gives one a lot of time to simply wait around until the next run. Doing rider optimization is more taxing as we only do two yaw point and hustle back and forth in and out of the tunnel. Both present their own unique challenges.

Thanks also goes to Geoff at A2 who worked out a couple of bugs with the mounts on the P5X. Luckily we have a long and very good working relationship with him and A2 and he stopped the clock for us. I don't think that would have happened at another windtunnel.

Lastly thanks to everyone who donated to make this happen. We had a blast, we got good data, and I feel accomplished what we set out to do. Now it is time for a beer.

Heath



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
Last edited by: Ex-cyclist: Apr 18, 17 15:18
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Re: To Kiley, and the rest of the crew at A2 [Ex-cyclist] [ In reply to ]
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Heath can you comment on Brian D falling asleep mid day during testing?

2024: Bevoman, Galveston, Alcatraz, Marble Falls, Santa Cruz
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Re: To Kiley, and the rest of the crew at A2 [BBLOEHR] [ In reply to ]
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Hahahhahahha. We were up pretty late and I was tired.

Make Inside Out Sports your next online tri shop! http://www.insideoutsports.com/
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Re: To Kiley, and the rest of the crew at A2 [BBLOEHR] [ In reply to ]
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We were finished testing Cervelos so he lost interest? haha


BBLOEHR wrote:
Heath can you comment on Brian D falling asleep mid day during testing?



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Thanks Dan. I obviously have much much more to say and I have longer posts and thoughts and responses to you in me. A couple things now

First, thank you for the welcoming to the club. As I said to you elsewhere, I can and will contribute to the sport and slowtwitch, even though I will always say critical things to people and about things I think warrant it, including you and Jordan and Cervelo -- I will just try to do it in a way that isn't so divisive and cruel.

Second, for all your predictions I had one too -- I absolutely knew this forum generally and you specifically would criticize my fit. That's what we do here! But, I agree that the cockpit is too long.

The reality is that I, with adult supervision and leadership, built three of these bikes from the ground up at the last days: the Felt B2 last Sunday (hat tip one line Robert); the Diamondback Andean (hat tip Philly Bikesmith and Max); and the Cervelo P5 (hat tip Dan Kennison and Inside Out Sports). I had to cut these four sets of very expensive Zipp extensions which I acquired for this test, and the way the Corsair is designed you have to cut it just right which imperils the resale value. So I went long. Beyond that I didn't even have a chance to ride any of these things except in the hotel parking lot for a few laps -- not even on a damn trainer -- so I am amazed I nailed it as well as I did given all the changes we had to make (stack up, saddle back a touch, etc.)

Really pleased with how it all came together here. Position wasn't the point of this test!

On the predictions,I suspect you may be on point or sniffing in the right direction with some of them
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Re: To Kiley, and the rest of the crew at A2 [kileyay] [ In reply to ]
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kileyay wrote:
Second, for all your predictions I had one too -- I absolutely knew this forum generally and you specifically would criticize my fit. That's what we do here!

I almost forgot...your seat is too high ;-)

http://bikeblather.blogspot.com/
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Re: To Kiley, and the rest of the crew at A2 [kileyay] [ In reply to ]
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i HOPE you will criticize what you find worthy of critique. mostly i think the exercise has been good for you because you know a little bit more now how hard folks work to produce the products for sale that we buy.

now, honestly, you might even have worked harder than some of the folks who're in the industry. i suspect you lost a few hours of sleep getting ready for this test. but the rigor you guys put into this shows what the industry standard is (or should be) for this kind of comparative test.

i've seen bike makers really struggle with how to choose a competitor's bike in the right size, with the particular configuration that shows that bike in its best light. one of the issues in comparative tests is that every bike has its best set of native configurations. i suspect that if all those bikes were set up to fit me, instead of you, there may have been some jockeying in the results because a particular bike is better as a narrow/tall versus long/low and so forth.

i think you guys did as good a job as i've ever seen in normalizing all the bikes so that the test was fair and accurate.

pardon the digression. my point is that a bike done right is a tremendous lift, from research to industrial design to engineering, CFD, tunnel testing, back to the drawing board, then field testing, fatigue testing, kinetic failures, oxidative failures (rust), cosmetic failures and so on. i remember when cannondale used to have a lab (maybe they still do) that not only tests its bikes, but tests all the components they might buy from suppliers.

i'm proud of our industry. i think now you have a new set of criticisms you can levy, which are those to the companies that DON'T do the testing you just went through, and those criticisms will carry more weight because you took the time and invested the energy yourself.

nice work.

Dan Empfield
aka Slowman
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Slowman wrote:
i from what i can see

Where? Are the pictures / video / a post I am missing?
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Re: To Kiley, and the rest of the crew at A2 [Mike Alexander] [ In reply to ]
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Mike Alexander wrote:
Slowman wrote:
i from what i can see

Where? Are the pictures / video / a post I am missing?
On Facebook. The link is early in on the test day thread , top of page

"I think I've cracked the code. double letters are cheaters except for perfect squares (a, d, i, p and y). So Leddy isn't a cheater... "
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Slowman wrote:


- and finally, kiley, your cockpit is too long. this didn't matter in the test, because your cockpit was universally too long. but your position could use a little fiddling in my opinion. .

Dan, we really need to get you down from your mountaintop redoubt and into the tunnel ;)

Refer back to your "choosing a bike from the aerobar back" article for inspiration

Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”
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Re: To Kiley, and the rest of the crew at A2 [kileyay] [ In reply to ]
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Thanks for all the hardwork. Can't wait to see the results!
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Re: To Kiley, and the rest of the crew at A2 [ericMPro] [ In reply to ]
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Yeah, not a fitter. But I think a certain amount of reach is personal. Ie I could never have (upper) arm angle at 70-90 degrees.

More like 50-60 or so for me. Allows a better shrug and I can tilt and get my elbows tighter.

Personal opinion and all that,
Maurice
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Re: To Kiley, and the rest of the crew at A2 [mauricemaher] [ In reply to ]
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it's not personal opinion... that's the point of the tunnel ;)

mauricemaher wrote:
Yeah, not a fitter. But I think a certain amount of reach is personal. Ie I could never have (upper) arm angle at 70-90 degrees.

More like 50-60 or so for me. Allows a better shrug and I can tilt and get my elbows tighter.

Personal opinion and all that,
Maurice

Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”
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Re: To Kiley, and the rest of the crew at A2 [ericMPro] [ In reply to ]
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Yes that was my point, personal "experience" perhaps, what could be described as against convention, Was both faster and more comfortable to me.

Maurice
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Re: To Kiley, and the rest of the crew at A2 [kileyay] [ In reply to ]
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After listening to TRS podcast I kicked over 25$ to your gofundme. Very much enjoyed the discussion and it got me enthused for the project like the threads never did. Looking forward to a proper presentation of the data.
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Slowman wrote:
i haven't seen the data and obviously nobody has seen the write-up but at first blush, from what i can see: bravo. you guys did a really nice job. thanks for your hard work.

i'm sure my reticence, caveats and stated concerns made your lives harder. to the degree that made the test better, then great. to the degree it didn't (because it was going to be well done anyway), i regret that.

if you don't mind i'm going to make the following guesses, proclamations, statements, predictions (we'll see if i turn out to be right):

- to brian and heath who, by all accounts i've heard, produced an excellent test, i suspect you have a new revenue stream if you want it. just, i'll bet it's a lot more nerve wracking and exacting testing 5 bikes with the same position than testing 5 positions on the same bike.

- to kiley: my posture as moderator here has always been consistent: i stand up for the folks on the inside who do the hard work (harder work than those on the outside ever suspect). you're on the inside now, which means i'll stand up for you when those on the outside take unfair shots at you (at least as regards this test!).

- about that P5X, which you didn't want to take to the tunnel because it was obviously no match aerodynamically for the other bikes, i'll be interested to see if you still feel that way once the test is published.

- same for disc brake tri bikes. i'll eat my hat if the disc brake bikes, as a pair, test more than 2 watts slower than the 2 best disc rim brake bikes you tested, in a blended sweep, and normalized down to 24mph (where people actually ride their bikes).

- there are no dogs when you get to the pointy end. bike makers today know what they're doing. i suspect that tire choices, and matching the best tire shape to the wheels you own, ends up making as much more more difference than the best frame to the worst frame among the new bikes tested. (we'll see if i just embarrassed myself with this statement.)

- i would also bet that the bikes are so close that hydration and storage preferences, ability to work on these bikes, travel with them, overwhelm the aero differences and (along with price, ability to obtain the bike, warranty, ability to test ride the bike) become the purchase imperatives.

- and finally, kiley, your cockpit is too long. this didn't matter in the test, because your cockpit was universally too long. but your position could use a little fiddling in my opinion. once it's dialed, THAT will make more difference than which of these 6 bikes you're riding, which is why i scratch my head at the keen interest among consumers in buying this versus that bike, in light of the fairly cavalier approach by so many users in how to ride properly on the product.

it was fun to watch. once you guys recover you ought to do it with helmets, where i suspect you might see a larger delta between the products than you may have seen with these frames.

To summarize the two lines in bold that you typed up....looks like what you are saying is "all these bikes are fine aero wise for most of us....just get the bike that you can wrench and travel with in your price range and get properly set up on it. If Kiley's community service leads us to this outcome, that's a great thing. I've been saying that the aero diff between most of these bikes is not large enough for MOST triathletes to affect the purchasing decision.
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Re: To Kiley, and the rest of the crew at A2 [Tom A.] [ In reply to ]
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Tom A. wrote:
kileyay wrote:

Second, for all your predictions I had one too -- I absolutely knew this forum generally and you specifically would criticize my fit. That's what we do here!


I almost forgot...your seat is too high ;-)

All is right in the world...
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Firstly, I love how the only photo we have of Heath in the front page article doesn't include his head because he is too tall to fit into the frame.



Secondly, below quoted for later follow-up, just in case :-)

Slowman wrote:
- same for disc brake tri bikes. i'll eat my hat if the disc brake bikes, as a pair, test more than 2 watts slower than the 2 best disc rim brake bikes you tested, in a blended sweep, and normalized down to 24mph (where people actually ride their bikes).


And this is the hat.



Thirdly I thought you lads did a smashing job and I was happy to have chipped in a few quid. Really looking forward to the write up.
Last edited by: knighty76: Apr 19, 17 2:18
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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In the end, the story is "The guy who lambasted Cervelo for releasing a rubbish test, and the guy who adored Cervelo despite said test, went to the tunnel together to do a better job than Cervelo ever could".

If the P5X comes out better than the P5 even with Kiley's super-clean setup, then I hope Cervelo send him a nice thank-you present for doing the job they should've been doing themselves: Not just design a functionally-brilliant product (let's see the tunnel results first) but also market it with better data.

ZONE3 - We Last Longer
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Re: To Kiley, and the rest of the crew at A2 [knighty76] [ In reply to ]
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Did you guys get a chance to test Indurain on his Ventum



or Boardman (we're actually coming up on the 25th year anniversary of the ride below)


Last edited by: devashish_paul: Apr 19, 17 5:31
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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There's another test going on here that interests me far more than wind tunnels and drag. It's the test that demonstrates less anonymity equals better behavior. So far the results look good: "I will just try to do it in a way that isn't so divisive and cruel."

Ian
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Re: To Kiley, and the rest of the crew at A2 [Ex-cyclist] [ In reply to ]
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can i ask you a protocol question? and it's a lead-up to another question, but i want to understand this first. at the A2 tunnel, my assumption is that the rider turns the rear wheel, just like a bike trainer. and a servo turns the front wheel (at the tunnel's wind speed).

do i understand this right? so far? or are the rider-aboard-test wheels spun in some other way?

Dan Empfield
aka Slowman
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Slowman wrote:
can i ask you a protocol question? and it's a lead-up to another question, but i want to understand this first. at the A2 tunnel, my assumption is that the rider turns the rear wheel, just like a bike trainer. and a servo turns the front wheel (at the tunnel's wind speed).

do i understand this right? so far? or are the rider-aboard-test wheels spun in some other way?
I might become a Kiley fan if you tell me he held perfectly still on all those tests on rollers :)
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Re: To Kiley, and the rest of the crew at A2 [ericMPro] [ In reply to ]
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The tunnel may get you the most aero position possible, but being comfortable in that position is more important IMHO.

I use pointy hats as an example. A number of years ago we all rode pointy hats that worked great with your face up, looking down the road and the tail flat on your back, but that position isn't sustainable for 180km. Therefore, pointy hats that only work in one position have disappeared and helmets that target being areo for the whole ride, have become the norm.

I believe riding aero (as determined by the wind tunnel) is an important, but not exclusive consideration.

TriDork

"Happiness is a myth. All you can hope for is to get laid once in a while, drunk once in a while and to eat chocolate every day"
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Re: To Kiley, and the rest of the crew at A2 [Slowman] [ In reply to ]
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Rider off there is a motor that spins both wheels at 30mph. When the rider is on the rear wheel roller is attached by a belt and turns the front wheel at the same speed. The rider drives the wheel speed. We normalized the gear and chain line on the bike so the wheel speed should have been nearly the same across the board given that Kiley was very consistent with his cadence/speed.



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
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Re: To Kiley, and the rest of the crew at A2 [knighty76] [ In reply to ]
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Haha.. I said the same thing, but honestly I was doing stuff in the control room pretty much the whole time Herbert was in the tunnel. Oh well.


knighty76 wrote:
Firstly, I love how the only photo we have of Heath in the front page article doesn't include his head because he is too tall to fit into the frame.



Secondly, below quoted for later follow-up, just in case :-)

Slowman wrote:
- same for disc brake tri bikes. i'll eat my hat if the disc brake bikes, as a pair, test more than 2 watts slower than the 2 best disc rim brake bikes you tested, in a blended sweep, and normalized down to 24mph (where people actually ride their bikes).


And this is the hat.



Thirdly I thought you lads did a smashing job and I was happy to have chipped in a few quid. Really looking forward to the write up.



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
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Re: To Kiley, and the rest of the crew at A2 [spudone] [ In reply to ]
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He held pretty much perfectly still. But you know the bike is also pretty well locked into place too. ;)


spudone wrote:
Slowman wrote:
can i ask you a protocol question? and it's a lead-up to another question, but i want to understand this first. at the A2 tunnel, my assumption is that the rider turns the rear wheel, just like a bike trainer. and a servo turns the front wheel (at the tunnel's wind speed).

do i understand this right? so far? or are the rider-aboard-test wheels spun in some other way?

I might become a Kiley fan if you tell me he held perfectly still on all those tests on rollers :)



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
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Re: To Kiley, and the rest of the crew at A2 [ianpeace] [ In reply to ]
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ianpeace wrote:
There's another test going on here that interests me far more than wind tunnels and drag. It's the test that demonstrates less anonymity equals better behavior. So far the results look good: "I will just try to do it in a way that isn't so divisive and cruel."

Ian

Well I had the benefit of meeting TheRealKiley (back in 2013 or 2014), so to me the entire Pubes show was just a show and I had the benefit of being able to read past it for the meat in the message. But I can totally see how it was divisive and had an acid tone if you did not know the man behind the act.

Soooo....since in one of the threads, I asked Slowman to invite him back with the Kileyay handle, I still feel like he owes us the "What happened at Oceanside While I was Banned from ST" report!!!! Switching to TheRealKiley would be totally optional if Slowman supports a parody of a parody handle! Seriously, I am glad that he's back, but I am actually less interested in his exploits in the windtunnel than actually what happened in racing....to me its the difference between reporting on what happened in the huddle or practice vs what happened on game day. I'm more interested in game day stories. Not enough posts around here about racing compared to posts about gear. Racing is timeless...the gear the races were done on are only transient.

Having said that, I am marginally interested in how close the Lotus of Boardman would come to the Ventum!
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Re: To Kiley, and the rest of the crew at A2 [devashish_paul] [ In reply to ]
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Quote:
I am marginally interested in how close the Lotus of Boardman would come to the Ventum!

I know someone with a Lotus. I might be able to convince him to ship it to the US if you're really interested.

Brian Stover USAT LII
Accelerate3 Coaching
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Re: To Kiley, and the rest of the crew at A2 [desert dude] [ In reply to ]
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You might convince Colby Pearce to loan out his from its current resting place at the pro's closet museum

My Blog - http://leegoocrap.blogspot.com
Last edited by: Morelock: Apr 19, 17 19:26
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Re: To Kiley, and the rest of the crew at A2 [Morelock] [ In reply to ]
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That would be a tough one since it is set up as a track bike with lots of mods.



Heath Dotson
HD Coaching:Website |Twitter: 140 Characters or Less|Facebook:Follow us on Facebook
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Re: To Kiley, and the rest of the crew at A2 [Ex-cyclist] [ In reply to ]
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Ex-cyclist wrote:
He held pretty much perfectly still. But you know the bike is also pretty well locked into place too. ;)

I was so still on the Ventum that to see any difference between my CdA values at the three zero yaw points, you have to go out to the fourth decimal point. So I was within 0.0001 on all three. Talk about spot on.
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Re: To Kiley, and the rest of the crew at A2 [Ex-cyclist] [ In reply to ]
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Hmm there is that, he probably wouldn't be keen on messing with it. I'm pretty sure he rode that same one on and off the track though.
I've got an old 650c zipp2001 to throw in the mix ;) too bad Dimond doesn't make a 650.

My Blog - http://leegoocrap.blogspot.com
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Re: To Kiley, and the rest of the crew at A2 [Morelock] [ In reply to ]
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Morelock wrote:
You might convince Colby Pearce to loan out his from its current resting place at the pro's closet museum


You mean this set up from his US hour record:



This is what he wrote on his website:

In September of 1995 I set the US hour record in Colorado Springs, CO using the full aero setup pictured above. I rode 50.191km in one hour and also set the 10km, 20km and 50km US records along the way. The previous record was held by John Frey (49.404km) and was also set in Colorado Springs, which is a concrete outdoor 333.3 meter track. Colorado Springs is 6035 feet above sea level.
In 1997 Norm Alvis broke my record and rode 51.505 km. I tried to take it back later that year and was ahead at 10km but fell behind by 20km and abandoned the attempt.
As you can see, I was pretty decked out for 1995 – even today equipment does not get leaps and bounds faster. The full carbon Lotus frame was light years ahead of most other bikes in that age. I had a deep front wheel (HED “deep”) and my position had been refined in the wind tunnel. I used a 55×14 gear and averaged close to 100 RPM. My average power, recorded with a SRM track power meter, was 311 watts. My drag was measured in this position at Texas A&M at around 4.6 lbs @30 mph.
I sometimes get funny questions about the hour record, such as “What was your time?” to which I usually respond “One hour. Someone once asked me “Well, at what point did you just stand up and go as hard as you possibly could all the way to the line, 100% as fast as you could go?” to which I responded “At the start.”
A complete list of recognized hour record distances is regularly updated by Mike Mowett on Wikipedia and can be found here:
https://en.wikipedia.org/wiki/Hour_record
As of 2015 I was still in the top 30 all time furthest distances ridden but that will change as more riders continue to tackle this event.
In 2013 I trained for another attempt on the US record and rode 49.806km. I was about 25 seconds down on the schedule to further Norm Alvis’ distance and then the wind picked up, putting me further off schedule. I rode further than the world record for the 40-44 age group at that time but the record was not submitted to the UCI as there were no doping control officers present. I did get the USAC 40-44 record, in addition to riding the furthest of anyone in the 30+ categories. The page for US records is here:
http://www.usacycling.org/usa-cycling-national-records.htm
I trained the entire 2013 season with this attempt in mind but after a storm delayed the construction of the Boulder Valley Velodrome, I was forced to move my attempt to Colorado Springs. I intended to try the record at the end of September in 2013 but then came the 1000 year Colorado floods. After week of not riding and dealing with our house, which had considerable water damage, I almost decided not to ride. After a year of preparation I owed it to my family, sponsors and myself to do what I could. Many local roads were closed so training took an apocalyptic coloring. After finding excellent form in the early part of September, I did what I could to polish my abilities and went for it. Unfortunately, the result was a much shorter distance than I hoped for.
Additionally, one week later I established the Absolute Record (read: Merckx style) for the US, with a distance of 46.452. That ride was extremely challenging and my bike had some technical issues which contributed to my ride being sub optimal, but it was what it was. I used a Nobilette custom steel frame with Wolber rims, and custom 34 cm drop bars. Now the UCI has done away with that category, which makes the effort completely obsolete. The reality is that it was an obtuse line to draw in the sand in the first place and it never made sense to try and turn back the clock on an effort like this. Nobody wants to see riders time trailing in drop bars for an hour with spoked wheels when we have tools like disc wheels and aero bars at our disposal today. I am glad the UCI has moved on. I can say this because I was stupid enough to sign up for it…
Last edited by: devashish_paul: Apr 19, 17 19:39
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Re: To Kiley, and the rest of the crew at A2 [devashish_paul] [ In reply to ]
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That's it, although I don't think it sits with the aero or die setup any more.

Would have been neat to know how his felt tk + brezza Nanos he used for his attempt years later compared

My Blog - http://leegoocrap.blogspot.com
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Re: To Kiley, and the rest of the crew at A2 [devashish_paul] [ In reply to ]
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I could write up a race report Dev. Those are good points. The gear is cool just because I feel like it's connected to larger issues here. Which is, sort of ironically, to see how big of fools we might be for being so focused on the speed of these bikes.
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Re: To Kiley, and the rest of the crew at A2 [Morelock] [ In reply to ]
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Morelock wrote:
That's it, although I don't think it sits with the aero or die setup any more.

Would have been neat to know how his felt tk + brezza Nanos he used for his attempt years later compared

I believe our man Kiley and Colby are also the same size
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Re: To Kiley, and the rest of the crew at A2 [tridork] [ In reply to ]
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You are wrong

tridork wrote:
The tunnel may get you the most aero position possible, but being comfortable in that position is more important IMHO.

I use pointy hats as an example. A number of years ago we all rode pointy hats that worked great with your face up, looking down the road and the tail flat on your back, but that position isn't sustainable for 180km. Therefore, pointy hats that only work in one position have disappeared and helmets that target being areo for the whole ride, have become the norm.

I believe riding aero (as determined by the wind tunnel) is an important, but not exclusive consideration.

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Re: To Kiley, and the rest of the crew at A2 [kileyay] [ In reply to ]
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kileyay wrote:
I could write up a race report Dev. Those are good points. The gear is cool just because I feel like it's connected to larger issues here. Which is, sort of ironically, to see how big of fools we might be for being so focused on the speed of these bikes.

Was your Oceanside set up one of the set ups from the tunnel? I assume the answer is yes? In which case your final result would be the same on all bikes tested?
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Re: To Kiley, and the rest of the crew at A2 [devashish_paul] [ In reply to ]
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I believe he stated elsewhere that to meet the stack of one of the bikes (the p5?), he had to come up a tiny bit on his "default" coordinates.

also unsure of how he tested various bottle setups relative to how he raced, but i believe the general intention was to setup similar to how he'd race 70.3.

so no and yes, final answer.

----
@adamwfurlong
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Re: To Kiley, and the rest of the crew at A2 [devashish_paul] [ In reply to ]
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devashish_paul wrote:
kileyay wrote:
I could write up a race report Dev. Those are good points. The gear is cool just because I feel like it's connected to larger issues here. Which is, sort of ironically, to see how big of fools we might be for being so focused on the speed of these bikes.


Was your Oceanside set up one of the set ups from the tunnel? I assume the answer is yes? In which case your final result would be the same on all bikes tested?

Actually, it's neither the same frameset -- it's the same exact B series frame, but new and a different color scheme -- bar, stem, or wheels that I raced at Oceanside. The full bike I rode at Oceanside I sold in the parking lot of my hotel the morning after the race to someone who contacted me about an ad I put up on that bike over a year ago. The guy lived in San Diego and drove down to check out the bike and dropped $5k right there.

To pull off this test I had to do a lot of equipment horse trading. I'm good at equipment horse trading, and I tend not to lose that much money because I'm sophisticated at buying things for low prices and selling them for similar prices. By selling that bike, I was able to build the new frameset Felt provided for me up to spec consistent with the position and component choices to facilitate this test. So I built it up with Enve 7.8 SES rim brake hoops, which I bought used, whereas before I had Zipp 808s. I replaced my previous base bar, which had a habit of cracking at the clamp, with the Enve bar for product integrity reasons. And I tossed on a slightly longer stem so that I could stop having to put my elbows so far forward on the pads.

So I can't tell you if my result would have been the same. I missed the turn off to the finishing chute at Oceanside, ran up the biggest hill on the course and quite a bit past the top of it, and then realized my mistake and had to retrace my steps, losing over two minutes. The sign pointing to the right said "2nd Loop -->" and in my tired, foggy brain, that was for me, because I was on my second loop. I lost out to the second place amateur, GLindy, by six seconds.

I guess an interesting and logical question might be, if I had actually known the course, where the run ends, or had not been a complete idiot, does that correction alone trump the decision to ride the slowest bike relative to the fastest bike on this test (if we assume the B2 is slowest, like everyone here likely does)? How much does choosing the fastest bike benefit me in time -- or the inverse, how much does the slowest bike hurt me in time -- for a race of that distance, at my speed, at my weight, at that pressure, assumed rolling resistance, etc.? We could get pretty crazy with the time prediction model. Somebody has already mentioned that I reach out to Best Bike Split, and it's a great idea. I just don't want to take my eye off the prize if the simple model I have for time prediction right now is basically sufficient for answering the core questions of this test.

Right now I'm more worried about yaw weights that I am about time prediction modeling or whether I would have beat GLindy on a P5-X. Unless my Felt was fastest, I already know riding the next fastest bike in the lineup would have pushed me up into runner up position in the amateur race. So there's your context. Does this shit matter if these bikes are close or doesn't it? That is entirely personal.
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Re: To Kiley, and the rest of the crew at A2 [desert dude] [ In reply to ]
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I know someone in Nashville with a Lotus. If anyone is interested I could ask if he would loan it for testing.


desert dude wrote:
Quote:
I am marginally interested in how close the Lotus of Boardman would come to the Ventum!


I know someone with a Lotus. I might be able to convince him to ship it to the US if you're really interested.
Last edited by: svennn: Apr 20, 17 9:32
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Re: To Kiley, and the rest of the crew at A2 [svennn] [ In reply to ]
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svennn wrote:
I know someone in Nashville with a Lotus. If anyone is interested I could ask if he would loan it for testing.


desert dude wrote:
Quote:
I am marginally interested in how close the Lotus of Boardman would come to the Ventum!


I know someone with a Lotus. I might be able to convince him to ship it to the US if you're really interested.

There's a guy in LA with one:

http://imgur.com/a/LRzjp

ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)
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