It's Frigging Science: Too Hot? Ride Faster.

With a similar sweaty eye stinging heat wave sweeping the nation, almost four years ago to the day, I wrote a post about cycling wind chill and discovered that you can feel a teeshy tish cooler, if you ride faster.  Against all the recommendations from meteorologists and health departments, with a heat index of nearly full-on Africa hot, I went out for a ride.  For the record I did not die.  In fact, I felt cooler.  Not a whole lot, but on a scale of Sudan to South Africa, I felt Southern Congo.  Here's a revisit of that "It's so hot my hands are slipping off the bars" post.

Four years ago when zippin’ down Kellogg Ave (now Riverside), a slightly downhill road along the Ohio River in Cincinnati, at 27mph, I couldn’t help but notice I felt cooler than when I was climbing a hill at 10mph into Eden Park.  Does wind chill apply in warm weather too?

These are the thoughts that go through your head when riding by yourself.  If my memory would serve me better on bike rides, I'd have retired like a Jet Blue flight attendant a long time ago having acted on one of my brilliant bike ride induced million dollar ideas.  These thoughts are precisely what makes cycling such a great escape…and precisely why your co-workers think you’re a kook for wearing spandex.

So, when I got back from my ride, I did a little Internet research on this phenom-enom-enom-enah.  Some weather websites said their wind chill factor calculator couldn’t be used if it was over 40 or 50 degrees.  Huh?  But, I felt cooler flying on my bike in 90-degree weather at 27mph.  The dog doesn't stick his head out the window to catch bugs.  Surely there must be a wind chill effect while cycling…a cycling wind chill. 

So, I dug a little deeper, expanded my search, and wah freakin’ lah, I found a Wind Chill Calculator that did accept temperatures over 50 degrees.  (insert evil laugh here)  Here’s the link:

http://www.weatherdesk.org/converts.shtml

So, I started plugging in numbers.  And, for the most part, it seemed to work.  That is, until I plugged in 100 degrees.  Over 100 the calculations came back saying it would feel even hotter riding at 10-30 mph.  No way Al Roker. 

But, maybe not.  Maybe there’s a temperature where no matter how fast you're riding, your body just can’t dissipate the heat any faster and thus the wind chill effect wouldn’t be in effect.  Yo!  The cycling wind chill is not in effect.

Here are the results of the numbers I plugged in.

Temp Bike Speed Cycling Wind Chill

100      30                         104

100      20                         102

100      10                         100

90        30                          87

90        20                          87

90        10                          89

80        30                          73

80        20                          75

80        10                          77

It seems like to enjoy a noticeable cycling wind chill, the speed needs to be over 20mph and the heat preferably south of 90 degrees.  However, there are other ways to feel cool on a ride, like using white bar tape, having only one gear and keeping your sunglasses on the outside of your helmet straps.  If you can't do that, think of the other things that can impact on how cool you feel when you ride like: wearing a black plastic trash bag instead of white lycra or a shaded bike path along a river, as opposed to climbing with a 50 pound huffy up exposed blacktop.  Experience has proven to me on a mountain bike it feels hotter wearing a sasquatch outfit when riding in a field of tall grass as compared to riding naked in a shaded forest. 

So there.

The Wave Through - Cycling Road Rules

It’s not exactly like being the money bag holding accomplice in a bank robbery, but I’m stilly pretty sure the law would frown upon it.  On the other side, like holding a door open at the supermarket or getting a sympathy card when your pet passes away, it’s a nice little gesture.  I appreciate the thought and consideration, but I also get the willies when I get the wave through.  As a cyclist, courtesy can have consequences.

Last night, I got the wave through.  I came upon an awkward stop sign intersection, Amsterdam and Sleepy Hollow near the town of Park Hills, KY if you want to see it on Google maps.  

The intersection is on the side of a hill.  Traffic heading west on Sleepy Hollow and south on Amsterdam hits a brake standing stop sign on a steep slope.  Traffic heading North and East are going awkwardly uphill, not quite on the brink of rolling backwards without the brakes.  I was headed South on Amsterdam, downhill.  The SUV headed west, got to the stop slightly before me and was next in rotation to cross.  They didn’t move.  I looked at them and the driver behind the dark glass waved me though.  “Maybe they ride bikes too,” I thought.  Before I could clip my foot back in, they waved again.  “Ugh,” I reconsidered, “they're trying to be nice in an antsy way.”  This is where it gets scary.  Hesitation is followed by impatience, which leads to carnage.  Since there was a car across from me and a car across from them in the intersection waiting, I had to act.

I clipped in and zipped safely across.  Thinking about it today, I wonder what would happened if I kept my foot down and gave them a “no, you go and follow the rules of the road” wave of my own.  I’m guessing they or one of the other cars at the intersection would’ve nailed the gas and blown through the intersection in a huff.  I also could’ve just sat there, pretended to fiddle with my equipment at the curb and waited the traffic out.  The more I think about it, it’s was probably best to do the most predictable thing at the moment.  First I waited my turn at the intersection.  When the driver waved me through, the next predictable thing was to just go.  I think predictable gets you home in one piece.  Patience also works pretty good.