PING: bodynazi - you're new helmet will be available soon!!
Last Post 07/09/2013 08:10 AM by Keith Jackson. 27 Replies.
Author Messages
Cosmic Kid

Posts:1175

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06/27/2013 01:27 PM
Specialized Evade aviailable soon!! Looks a whole heap of a lot better in the white configuration!! http://www.specialized.com/us/en/ftr/helmets/road-helmets/sworks-evade
Just say "NO!" to WCP!!!!
ChinookPass

Posts:484

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06/27/2013 01:31 PM
Inspired by nature? blowhole
Cosmic Kid

Posts:1175

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06/27/2013 01:45 PM
HAH!! That's pretty funny, chinook!!

here is some of the wind tunnel data for anyone that is interested.....
Just say "NO!" to WCP!!!!
jacques_anquetil

Posts:231

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06/27/2013 02:35 PM
god, contemporary helmet design is getting more fugly by the day. but as they say, it's all subjective.

maybe those power comparisons? probably objective but on a race course there are so many other variables as to probably render that into pure marketing dreck.
Cosmic Kid

Posts:1175

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06/27/2013 02:49 PM
I wouldn't call it dreck....at the end of the day, it is still data. Sure, there are always variables at play that can't necessarily be quantified. But it does provide some valuable information re: the advantage provided by an aero lid.
Just say "NO!" to WCP!!!!
Dale

Posts:514

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06/27/2013 02:57 PM
I am calling complete and utter BS on that data. No way can you convince me that all things being equal in a 200m sprint a person wearing an Evade is 2.6 meters ahead of a person wearing a Prevail unless the latter is using the helmet as a drag chute.

Paging Mark Twain: Please bring your "Lies, Damn Lies, and Statistics" quote, we need it right now.
79pmooney

Posts:1191

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06/27/2013 03:13 PM
I cannot tell which is the front and which is the back. Is this the new breakthrough? That the rider can choose the orientation depending on the event?

Ben
vtguy

Posts:248

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06/27/2013 04:43 PM
It's for riders who don't know if they're coming or going...and at $275 it would be cheap at twice the price.
THE SKINNY

Posts:423

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06/27/2013 04:51 PM
maybe you wear it backwards if you have a tail wind.
How we spend our days is, of course, how we spend our lives.
Hoshie

Posts:115

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06/27/2013 05:00 PM

Not sure about those numbers but in hanging with some tri guys, they are ruthless (and sometimes clueless) about speed and no doubt aero makes a difference. Especially how high our noggins sit on those bikes in the road position.

Anyone know how a bare head vs a helmet fares? Just curious...

J
Ride On

Posts:452

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06/27/2013 05:31 PM
The problem with wind tunnel testing or CFD analysis is that it is carried out with a stationary head ( or bike ).

In the real world they move in relationship to the flow which would tend to change the trip point of the laminar flow. That totally changes the drag.

Until you start to see data with the object under test moving side to side in the flow I wouldn't put much stock in the results.
SideBySide

Posts:189

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06/27/2013 06:31 PM
Am I interpreting this correctly? At 0 deg yaw, 50 km/hr takes ~140 vs 160 watts. I don't think I believe that the evade takes 14% less power, considering the other factors.
That chart sucks, random numbers, not aligned to random grid lines.
Oldfart

Posts:490

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06/27/2013 08:25 PM
For all the naysayers claiming the new Giro Air attack will be hot, without actually trying one, they are not particularly hot in my experience. I wanted a helmet with few vents to keep the sun off my scalp while undergoing efudex treatment. Kind of a medical necessity for me. I still sweat because I go hard. I sweat hard with or without a helmet. My previous helmet is a Lazer and it funnels sweat into my right eye. It is awful and it is full on vents. Of course it does not get that hot here although this weekend is looking like low 30's so I may have further test results soon.

That Specialized does look odd to me though. I prefer round and plain looking helmets as opposed to finned ones with funky hole designs and spacy patterns.
79pmooney

Posts:1191

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06/28/2013 12:32 AM
I like the claim on time saved. Let's see, if I put 20,000 on those helmets over the next few years, at 46 seconds/40k, that's about 10 hours. Is there any way I can withdraw that 10 hours all at once so I can do something useful with it?

Ben
eurochien

Posts:44

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06/28/2013 12:45 AM
It looks like a crêpe or a cowpie. Buy why buy it now? Next year or the next, it will be 20.03% lighter and 14.003% more aero and it will "produce" 4.056% more power. Specialized, the marketing specialists.
Keith Richards

Posts:755

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06/28/2013 01:12 PM
It is ugly as sin and as with everything those numbers are occurring in the wild and wonderful world of "controlled testing".

But we don't have to buy one of these fashion sins. There is another way, right CK?

(edit) The problem I have with this and the Giro Attack is that while these are (possibly) great at 20mph+ how about when I am climbing for 30 minutes in July/August at 10-13mph? I want a helmet that is good at everything as opposed to great at one thing.
----- It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong.
79pmooney

Posts:1191

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06/28/2013 01:53 PM
Keith, you need that EPO stuff so you can climb at speeds where those helmets work! (Leveling the playing field.)

Ben
Oldfart

Posts:490

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06/28/2013 03:11 PM
Keith. The Air Attack has not been particularly hot for me yet including a 12 km climb on a low 20's C day. Supposed to be a stinker this weekend so I'll know more. Remember though, you don't sweat due to any helmet but due to hard riding. Before I wore a helmet I wore a cap or head band and I still had sweat dripping off my head. Of course I had a bit of a pelt back then. Not so much anymore.
Keith Richards

Posts:755

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06/28/2013 05:25 PM
Posted By old fart on 06/28/2013 03:11 PM
Keith. The Air Attack has not been particularly hot for me yet including a 12 km climb on a low 20's C day. Supposed to be a stinker this weekend so I'll know more. Remember though, you don't sweat due to any helmet but due to hard riding. Before I wore a helmet I wore a cap or head band and I still had sweat dripping off my head. Of course I had a bit of a pelt back then. Not so much anymore.


I live in DC. 95+ and high humidity is a regular thing around here. Hard riding up a 30 min climb in the Shenandoah mtns with that helmet on is going to suck and you can't convince me of otherwise because I have had to ditch helmets with more vents than that on climbs in the summer out this way.



If this helmet was too hot, the Giro is going to be as well.
----- It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong.
Oldfart

Posts:490

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06/30/2013 08:13 PM
OK did the test. 32°C 88F°. No more hot really than any other helmet for me. Did a 12 km climb up to the Callaghan XC area. Now I am good in the heat so others might not be so un bothered. Just one persons view. Oh and that's wearing a heat gear under shirt, light jersey and those cooling arm warmers because I am not allowed to expose my skin to sun for a while yet.
Keith Richards

Posts:755

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07/06/2013 09:36 AM
First big climbing day in Le Tour. 90+ degrees. Not a single aero helmet in sight. Just saying...
----- It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong.
Gonzo Cyclist

Posts:225

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07/07/2013 01:04 PM
Fugly, Fugly, Fugly..........But, it is the best looking version of these new style of lids
Yo Mike

Posts:277

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07/08/2013 08:47 AM
So, during a race a rider can get a new wheel, a new bike......what about a new helmet? Could a rider switch out a better ventilated lid for a super duper-it'll-cure-your-asthma-too aero helmet for the few seconds of advantage it might give him?

Of course, maybe they don't want that asthma cured, as it would remove a TUE.

Cosmic Kid

Posts:1175

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07/08/2013 12:13 PM
Posted By Kenny Gonzales on 07/07/2013 01:04 PM
Fugly, Fugly, Fugly..........But, it is the best looking version of these new style of lids


The new aerol road lid from Louis Garneau looks really good. Much more like a normal road lid, but more rounded at the back. EuropeCar has been sporting them this week.
Just say "NO!" to WCP!!!!
Gonzo Cyclist

Posts:225

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07/08/2013 12:40 PM
agreed Cosmic, just saw an ad with them wearing it, very nice
Cosmic Kid

Posts:1175

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07/08/2013 03:37 PM
It actually reminds me a bit of the old Bell Image that Tomac used to wear.



Just say "NO!" to WCP!!!!
C2K_Rider

Posts:172

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07/08/2013 05:52 PM
If you take all the "data" offered about all equipment and clothing, from every vendor, and add it all up you'll get negative resistance numbers. It is clear that the most difficult thing for cyclists to do these days is to stay stopped!
Keith Richards

Posts:755

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07/09/2013 08:10 AM
For the pros, having helmets for specific terrain, I get it...hey they are not paying for them, more power to them. For the rest of us...I don't have $500 to spend on helmets.
----- It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong.


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