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Faster in the rain?

Started by Ken C. M. · · Last activity · 33 posts · 823 views

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Road Cycling
Published
4 February 2006
Last activity
13 February 2006
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Ken C. M.
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  1. I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken
    --
    You never have the wind with you - either it is against you or you're
    having a good day. ~Daniel Behrman, The Man Who Loved Bicycles

    Homepage: http://kcm-home.tripod.com/

  2. "Ken C. M." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is this
    just an illusion in my mind, backed up by my cyclo-computer, or is there
    some real reason why riding a bike in the rain is easier / faster? Perhaps
    water in the chain making it easier to spin? I noticed on my commute home
    last night in the rain I was about 1-2 mph faster than my average.

    How about a new motivation to stay dry? 🙂

    I think you ought to take things a bit easier in the rain as there would
    seem to be an increased chance of going down.

  3. "Ken C. M." <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    Was there wind? A tail wind could easily add 1-2mph to your ride.
    Maybe just the desire to get it over with quickly....

  4. mike said:

    "Ken C. M." <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    Was there wind? A tail wind could easily add 1-2mph to your ride.
    Maybe just the desire to get it over with quickly....


    There was no wind, or very little, as in hardly enough to notice.
    Perhaps the wanting to get it over is part of the reason, but it did
    SEEM easier to spin.

    Ken
    --
    You never have the wind with you - either it is against you or you're
    having a good day. ~Daniel Behrman, The Man Who Loved Bicycles

    Homepage: http://kcm-home.tripod.com/

  5. Ken C. M. said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or
    is there some real reason why riding a bike in the rain is easier /
    faster? Perhaps water in the chain making it easier to spin? I
    noticed on my commute home last night in the rain I was about 1-2 mph
    faster than my average.

    Subconcious dodging of rain drops?

    Bill "slow morning" S.

  6. In article <[email hidden]>, kencmjr-
    [email hidden] says...

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    If anything, the water on the road should slow you down.

    --
    Genius may have its limitations, but stupidity is not thus handicapped.
    -- Elbert Hubbard

  7. "Ken C. M." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    mike said:

    "Ken C. M." <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is this
    just an illusion in my mind, backed up by my cyclo-computer, or is there
    some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    Was there wind? A tail wind could easily add 1-2mph to your ride.
    Maybe just the desire to get it over with quickly....


    There was no wind, or very little, as in hardly enough to notice. Perhaps
    the wanting to get it over is part of the reason, but it did SEEM easier
    to spin.

    Some times you don't even notice a tailwind...if the rain isn't coming
    straight down there's a wind about.

  8. "Ken C. M." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is this
    just an illusion in my mind, backed up by my cyclo-computer, or is there
    some real reason why riding a bike in the rain is easier / faster? Perhaps
    water in the chain making it easier to spin? I noticed on my commute home
    last night in the rain I was about 1-2 mph faster than my average.

    Well, water is a lubricant, under certain circumstances....

    RichC

  9. "dB" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    In article <[email hidden]>, kencmjr-
    [email hidden] says...

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?

    If anything, the water on the road should slow you down.

    I nearly always ride slower in the rain. Part of it is that I make up for my
    lousy hillclimbing with fast descents; if it's raining, I'm more cautious on
    the downhills.

    Speaking of rain, I don't know why I had such a splendid ride home on Friday
    after work. It ranged from a regular rain to sprinkling the whole way, and a
    relatively strong wind from the south. Usually I find that sort of crosswind
    on the bridge, combined with rain, to be unpleasant, but for some odd reason
    I had a smile on my face. There were really cool patterns of rain and wind
    on lake surface, too.

    --
    Warm Regards,

    Claire Petersky
    http://www.bicyclemeditations.org/
    Sponsor me for the Big Climb! See: www.active.com/donate/cpetersky06
    See the books I've set free at:
    http://bookcrossing.com/referral/Cpetersky

  10. In article <[email hidden]>,

    Ken C. M. said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    According to Chuck Berry, only Fords go faster in the rain.

  11. Ken C. M. said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Guess 1: You don't stop or slow down to look at the scenery in the
    rain. Less lolly-gagging => faster average speed.

    Guess 2: Free sweat. You can generate more heat via exercise when
    your body is being cooled by the rain, so you go faster with less
    perceived effort.

    Pat

    Email address works as is.

  12. "Ken C. M." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is this
    just an illusion in my mind, backed up by my cyclo-computer, or is there
    some real reason why riding a bike in the rain is easier / faster? Perhaps
    water in the chain making it easier to spin? I noticed on my commute home
    last night in the rain I was about 1-2 mph faster than my average.

    Ken
    --


    More efficient cooling system.

    Quoted message said:


  13. Water vapor is nearly 40% less dense than dry air, with a proportionate
    reduction in aerodynamic forces. However the effect in normal
    atmospheric conditions is not more than one percent or so, as I
    understand it.

  14. <[email hidden]> wrote: Water vapor is nearly 40% less dense than dry
    air, with a proportionate reduction in aerodynamic forces. (clip)
    ^^^^^^^^^^^^^^^
    But, but, but....rain is not water vapor. Every time a drop of water hits
    you or the bike, it has to be accelerated to the speed of the bike. Besides
    that, all the energy that goes into the spray emanating from your tires
    comes from your pedalling. It's like running a small pump--the harder it
    rains, the more volume you are pumping. I can't see any way that can make
    you faster.

  15. Rain normally occurs in air which is fully saturated with water vapor.

  16. Quoted message said:

    Rain normally occurs in air which is fully saturated with water vapor.

    100% humidity at 00C 32F is 0.5% water vapor
    100% humidity at 10C 50F is 1% water vapor
    100% humidity at 20C 68F is 2% water vapor
    100% humidity at 30C 86F is 4% water vapor
    100% humidity at 40C 104F is 7% water vapor

    I found this table
    http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson74.htm
    100C 212F is the boiling point of water, this thould be normal
    atmospheric pressure.

  17. On Sat, 04 Feb 2006 08:24:21 -0500, "Ken C. M." <[email hidden]>

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    I've felt that.

    As others suggested, more motivation and better cooling. As for the tailwind
    factor, what I've learned is that if you don't feel yourself pounding into the
    wind, that means you've got a tailwind. That's the case here in Tampa anyway.

    Ron

  18. After all that I forgot to look at atmospheric pressure. This is a
    much larger factor, varying up to 25 percent (in world-record
    extremes). That, of course, translates into density and drag
    variations.

  19. Ken C. M. said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?

    I always go slower in the rain - to the tune of 5-10%. The tires have
    added drag even with just a film of water on the road. If you go
    faster in the rain than on dry roads, it must be some other factor, as
    others have implied. My guess is your effort increases more than you
    realize or you've got a tailwind.

    -JR

  20. "Ken C. M." <[email hidden]> wrote in
    news:[email hidden]:

    Quoted message said:

    I have noticed that when riding in the rain, I seem to be faster! Is
    this just an illusion in my mind, backed up by my cyclo-computer, or is
    there some real reason why riding a bike in the rain is easier / faster?
    Perhaps water in the chain making it easier to spin? I noticed on my
    commute home last night in the rain I was about 1-2 mph faster than my
    average.

    Ken

    At the race track, there's a condition called "wet fast." It occurs when
    there's some water on the dirt, but not enough to make it muddy or choppy.
    Wet fast times are faster than hard or good conditions. Something to do
    with friction I'm sure.

    --ag

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