Keith Richards
Posts:781
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| 07/18/2014 02:07 PM |
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They can say whatever they want about wicking properties and aerospace fabrics. Wearing a black jersey had to suck on a day as hot as today. |
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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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jmdirt
Posts:775
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| 07/18/2014 02:19 PM |
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KR, there is some research out there about this very topic. Not too shocking some of the big players like Nike, UA, etc. not only do their own, but contributed to this independent research as well. Going just from my poor memory, fabric color had no effect of core temp.
A quick Google search didn't get me anything. I'm pretty sure it was a big University doing the research... |
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Keith Richards
Posts:781
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| 07/18/2014 02:25 PM |
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| It very well may not have a effect on CORE body temps, that don't mean that it is more comfortable on your skin on a blazing hot day than a light colored jersey. |
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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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Yo Mike
Posts:338
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| 07/18/2014 02:30 PM |
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White reflects more; black absorbs more.
http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0263355
Might not be a huge difference, but it all ads up.
And for non-pro consideration: other than shorts / tights, I don't wear black / dark colors on the bike. They are just not as visible.
I really thought that Porte had a shot at the podium, with the attrition and all.......
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Oldfart
Posts:511
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| 07/18/2014 03:28 PM |
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| Maybe black helps evaporate sweat quicker and keeps you a touch cooler? Personally at 35C I sweat buckets no matter which helmet and no matter what colour clothing I wear. To me it is sweat management. |
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Orange Crush
Posts:4499
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| 07/18/2014 05:03 PM |
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If you are sitting still or hiking (low speed), you betcha black is not the colour to wear on a hot sunny day. My 11 year old knows that and remarked the other day while hiking in blazing heat "this is not a good day to wear black".
Riding a bike, wind speed becomes the controlling factor, colour of your jersey is secondary. Physics 101. |
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79pmooney
Posts:3180
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| 07/18/2014 05:23 PM |
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Climbing an 11% grade (as found on both climbs today) with a moderate wind at your back (often found as warm air rises up the mountain):relative wind speed =~ 0 mph. Potentially a deciding point in a race. Now does black sound so smart?
Hmmm, hot today. A certain rider starting at a high placing who happened to be wearing black lost 7 minutes to a rider wearing yellow and light blue on those steep climbs. Six minutes to a rider wearing red and white. But I am sure that Sky can just brush this off as circumstantial (and knowing Sky, will if this is pointed out).
Oh, Andy, by extension, shouldn't riders have portable heaters to improve evaporation? Or is that banned as an outside power source? 
Ben |
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Nick A
Posts:625
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| 07/18/2014 05:48 PM |
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My personal research: I can feel the difference between a black T-shirt and a white T-shirt in the New Mexico sun. Big time.
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Oldfart
Posts:511
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| 07/18/2014 05:52 PM |
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| Ben: I am thinking a fan mounted on a stick so that it blows you from the back thereby providing not only a tailwind but a cooling breeze too. a la Wile E Coyote I also avoid riding road when it gets this hot. I go ride in the woods. No question dark clothes in hot sun with no wind is damn hot. |
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SideBySide
Posts:444
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| 07/18/2014 06:01 PM |
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| OK, to stay cooler on my ride home with temps in the 80's I just need to ride faster. |
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79pmooney
Posts:3180
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| 07/18/2014 06:22 PM |
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Andy, do you mean a propeller behind you? It would keep you cool all right, but turn it up high enough and you have to apply the brakes just to keep from being pulled backwards. Or is this mounted on the motorcycle beside you?
Ben |
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Orange Crush
Posts:4499
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| 07/18/2014 08:08 PM |
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Posted By SideBy Side on 07/18/2014 06:01 PM
OK, to stay cooler on my ride home with temps in the 80's I just need to ride faster.
That is exactly right. The more wind, the more your sweating gets transported away by that wind,allowing your body to sweat more efficiently, staying cooler. It's a well known process.
Couple caveats though. As soon as you hit a traffic light and are stopped you pay double. I get tthis all the time mid-summer. Riding along in the heat feeling fine, red light; suddenly sweating bullets.
And for those riding in humid heat obviously this does not work. |
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jmdirt
Posts:775
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| 07/18/2014 10:32 PM |
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Core temp is the important thing because that will affect performance. Skin temp might be a bit of a mental game though.
Many years ago, before fabrics were as good as they are now, I raced for a team that had black and dark purple kits with neon yellow lettering. I honestly didn't feel hotter. Don't forget that I'm talking about old school dirt racing when we used to climb from the lodge to the top of ski hills (read: sub 10 mph a lot). |
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Oldfart
Posts:511
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| 07/18/2014 11:43 PM |
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Posted By 79 pmooney on 07/18/2014 06:22 PM
Andy, do you mean a propeller behind you? It would keep you cool all right, but turn it up high enough and you have to apply the brakes just to keep from being pulled backwards. Or is this mounted on the motorcycle beside you?
Ben
Yeah pretty much. The coyote had one mounted behind a skateboard with sail on it. He motored along really well until his electric cord ran out and he went off another dang cliff. Phweeeeeeeeeeeeeeeeeeeeeeeeeeeee.............pock. |
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