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  1. #1
    Mountain Bikes are Art
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    How much Horsepower do people make?

    Just wondering if cyclist's output has often been measured in Horsepower? It seems we gotta be the equivalent of a 35CC motor or so on a good day for a few seconds? DO any of you know typical output? Or perhaps measured in Thrust ?
    Bob S.
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  2. #2
    ÖöÖöÖöÖöÖö Dannihilator's Avatar
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    Depends on the person.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  3. #3
    Noobhead jiiiim's Avatar
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    fyi - 1lb of thrust = 2hp
    thought maybe some of you might wanted to know

  4. #4
    Flatland hack Flak's Avatar
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    The roadie forum might be useful to ask in. They seem concerned with wattage and the likes.

  5. #5
    Mountain Bikes are Art
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    I know small trolling motors claim 40 poundes of thrust, so that would make them 80 HP. Your formula must be off by a decimal or something.
    Bob S.
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  6. #6
    dirt is good trevor's Avatar
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    I would think a horse in real life has more power than a person.. but thats different. I think? lol horses run and pull way more than humans thatns for sure.
    I like riding bikes :)

  7. #7
    hehe... member thatguy's Avatar
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    43.

    The answer is 43.

  8. #8
    Noobhead jiiiim's Avatar
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    sorry for my mistake. i'm a mythbuster fan and i was watching one of their episoda where they were mounting rockets on the roof of the car. adam said the rocket produce x amount of thrust which means the car has 2x of horsepower. i just googled a bit and the formula to convert such forces needs the factor of speed. at low speed, the ratio is about 1:.9 (thrust to HP), at a moderate high speed it's about 1:1 and at the speed of sound it's 1:2.
    plz do correct me before i sink myself further with incorrect info.

  9. #9
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  10. #10
    No longer in Wimbledon... womble's Avatar
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    Quote Originally Posted by thatguy
    43.

    The answer is 43.
    I think that if you revist your calculations, you'll find it's 42

  11. #11
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    Humans don't measure in HP but instead in watts. If I remember my basic physics class, 1HP is 743 watts of power. Personally I have no idea how to measure human power output because I have no desire to do so, but I know that PowerTap makes hubs for road bikes which can measure this.

    --Oh yeah, my guess is that average power output is around 200 - 300 watts? so that divided by 743 watts gives you HP.

    I stand corrected, I read the stuff on google and it's 746 watts and it's probably less than 200 watts *shrugs*
    Last edited by idleuser; 10-05-06 at 08:54 PM.

  12. #12
    I get high on lactic acid ^*^BATMAN^*^'s Avatar
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    Well on my road bike, I have a power tap on my race wheels. On a 100-150km ride, I will average about 300w. The most I have seen myself put down, was in a sprint, I maxed out at 1235w(that was a 100m standing sprint).
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  13. #13
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Quote Originally Posted by KonaRider24
    Depends on the person.

    Or the horse.
    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
    Quote Originally Posted by making View Post
    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  14. #14
    Senior Member
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    Quote Originally Posted by ^*^BATMAN^*^
    The most I have seen myself put down, was in a sprint, I maxed out at 1235w(that was a 100m standing sprint).
    Was that the average for the whole 100m or THE max.

  15. #15
    ÖöÖöÖöÖöÖö Dannihilator's Avatar
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    Quote Originally Posted by Siu Blue Wind
    Or the horse.
    A horse is easy.

    1 horsepower.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  16. #16
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Not if the horse has been working out....Hmphh! (flips head and tosses hair in the air)
    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
    Quote Originally Posted by making View Post
    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  17. #17
    ÖöÖöÖöÖöÖö Dannihilator's Avatar
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    Miniature horse equals 1/2 horsepower.

    A dead horse equals 0 horsepower.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  18. #18
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
    Quote Originally Posted by making View Post
    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  19. #19
    Je pose, donc je suis. gcl8a's Avatar
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    Quote Originally Posted by jiiiim
    fyi - 1lb of thrust = 2hp
    thought maybe some of you might wanted to know
    Only if you're going 1100 feet per second.

    You have two different types of units. Thrust is force, while power is force times speed (energy per time, really).

  20. #20
    you can go backwards?!
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    roughly .1, if you're a 'baseline' active/athletic person, depending on how long of a period of time you're measuring over.

  21. #21
    Get the stick. darkmother's Avatar
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    1 hp = 745 W If you are in good shape you might be able to put out 1000 W for a couple of seconds.

  22. #22
    later free_pizza's Avatar
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    see Slvoids User Title, that'll give you your answer

  23. #23
    I get high on lactic acid ^*^BATMAN^*^'s Avatar
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    Quote Originally Posted by idleuser
    Was that the average for the whole 100m or THE max.
    Max, in a sprint like that, we spanned two lanes wide with people sprinting, you dont really watch your computer...so all I saw was the max after the sprint was done and I looked at the computer. I have had sustained efforts at about 800w for about a km. It was a race up a hill, my legs hurt after that, so ya, about 1hp.
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  24. #24
    PBR Racing RIC0's Avatar
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    I"m crankin out like 35 RWHP on a good day.... DOH
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  25. #25
    DO panic! rockrates's Avatar
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    Quote Originally Posted by womble
    I think that if you revist your calculations, you'll find it's 42
    OF COURSE it's 42. maybe you don't know what the question is?

    Sincerely, Deep Thought

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