How much Horsepower do people make?
#1
Mountain Bikes are Art
Thread Starter
Join Date: Apr 2006
Posts: 313
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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 ?
#2
Still kicking.
Depends on the person.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#4
Flatland hack
Join Date: Nov 2005
Location: Nowhere near the mountains :/
Posts: 3,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
The roadie forum might be useful to ask in. They seem concerned with wattage and the likes.
#5
Mountain Bikes are Art
Thread Starter
Join Date: Apr 2006
Posts: 313
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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.
#6
dirt is good
Join Date: Jul 2004
Location: winnipeg,mb-Canada
Posts: 284
Bikes: norco wolverine
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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.
#8
Noobhead
Join Date: Jul 2006
Location: SoCal
Posts: 688
Bikes: k2 Zed 4.0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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.
plz do correct me before i sink myself further with incorrect info.
#9
Senior Member
Join Date: Dec 2005
Location: southern oregon
Posts: 2,631
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#10
No longer in Wimbledon...
Join Date: May 2005
Location: Hong Kong
Posts: 865
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by thatguy
43.
The answer is 43.
The answer is 43.
#11
Senior Member
Join Date: Dec 2005
Posts: 287
Bikes: Specialized Epic Comp 2013, Specialized Allez Elite 2005
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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*
--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
I get high on lactic acid
Join Date: May 2005
Location: Ontario, Canada
Posts: 725
Bikes: 2003 Cervelo P3/2003 Trek 2000/2005 Norco EXC 2.0ht
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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).
#14
Senior Member
Join Date: Dec 2005
Posts: 287
Bikes: Specialized Epic Comp 2013, Specialized Allez Elite 2005
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
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).
#15
Still kicking.
Originally Posted by Siu Blue Wind
Or the horse.
1 horsepower.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#17
Still kicking.
Miniature horse equals 1/2 horsepower.
A dead horse equals 0 horsepower.
A dead horse equals 0 horsepower.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#19
Je pose, donc je suis.
Join Date: Mar 2006
Location: Odense, Denmark
Posts: 1,463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by jiiiim
fyi - 1lb of thrust = 2hp
thought maybe some of you might wanted to know
thought maybe some of you might wanted to know
You have two different types of units. Thrust is force, while power is force times speed (energy per time, really).
#21
Get the stick.
Join Date: Nov 2004
Location: Toronto, ON
Posts: 1,543
Bikes: 12 Y.O. Litespeed MTB, IRO Jamie Roy fixie, Custom Habanero Ti 'Cross, No name SS MTB, Old school lugged steel track bike (soon)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
1 hp = 745 W If you are in good shape you might be able to put out 1000 W for a couple of seconds.
#23
I get high on lactic acid
Join Date: May 2005
Location: Ontario, Canada
Posts: 725
Bikes: 2003 Cervelo P3/2003 Trek 2000/2005 Norco EXC 2.0ht
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by idleuser
Was that the average for the whole 100m or THE max.
#25
DO panic!
Join Date: Jun 2006
Location: Washington, DC
Posts: 145
Bikes: Scott Speedster, Giant Trance X
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by womble
I think that if you revist your calculations, you'll find it's 42
Sincerely, Deep Thought