Nobody mentions Horse Power
Nobody mentions Horse Power
Major bike sites don't list the horsepower for their bikes - how come?
Is there any way to find out which is what?
Is there any way to find out which is what?
- flynrider
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Many don't advertise horspower, because the laws in many countries would make them back it up.
In the olden days, when rules were much looser, hp claims by manufacturers were usually quite optomistic.
Nowadays, if a manufacturer does make an hp claim, it's almost always measured at the crank, with the engine on a test cell. Not much real world info in their number, since the entire drive line is left out.
If I want to find out how much horsepower a bike really delivers to the rear wheel, I start Googling the model number and try to find actual dyno charts that folks have put on the web. Those numbers are about the closest you'll get to reality.
In the olden days, when rules were much looser, hp claims by manufacturers were usually quite optomistic.
Nowadays, if a manufacturer does make an hp claim, it's almost always measured at the crank, with the engine on a test cell. Not much real world info in their number, since the entire drive line is left out.
If I want to find out how much horsepower a bike really delivers to the rear wheel, I start Googling the model number and try to find actual dyno charts that folks have put on the web. Those numbers are about the closest you'll get to reality.
Bikin' John
'93 Honda CB750 Nighthawk
'93 Honda CB750 Nighthawk
Re: Nobody mentions Horse Power
I've wondered about this too. More broadly, why is it considered less relevant than engine displacement?Ahab wrote:Major bike sites don't list the horsepower for their bikes - how come?
Is there any way to find out which is what?
- Ninja Geoff
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- Kal
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Re: Nobody mentions Horse Power
Engine displacement is sexy, whereas bhp isn't unless you are talking to another petrolhead...zenman wrote:I've wondered about this too. More broadly, why is it considered less relevant than engine displacement?
Kal...
Relationship Squid...
GPZ500S, CB250N, GB250Clubman
Relationship Squid...
GPZ500S, CB250N, GB250Clubman
- Dragonhawk
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Yes, it is hard to research. Look here for starters:
http://www.motorbikes.be/en/
http://www.motorcyclistonline.com/performancedata/
http://sportrider.com/bikes/146_weights_measurements/
You can check my site too:
www.CaliforniaBikeNights.com/learn
But, my site gets the data from the 3 that I just listed above, plus manufacturers sites (non-American and non-Japanese motorcycle manufacturers usually list horsepower).
Heck, if they built a 3000cc motorcycle with a peak 12HP they could use it in MSF classes.
(Well, barring the fact that it might weigh 900 lbs.)
http://www.motorbikes.be/en/
http://www.motorcyclistonline.com/performancedata/
http://sportrider.com/bikes/146_weights_measurements/
You can check my site too:
www.CaliforniaBikeNights.com/learn
But, my site gets the data from the 3 that I just listed above, plus manufacturers sites (non-American and non-Japanese motorcycle manufacturers usually list horsepower).
Horesepower IS far more important than engine displacement. But lots of people are lazy and stupid. So they don't bother to research horsepower (too lazy) or educate themselves (too stupid) as to why horsepower is vastly more relevant.zenman wrote:I've wondered about this too. More broadly, why is it considered less relevant than engine displacement?
Heck, if they built a 3000cc motorcycle with a peak 12HP they could use it in MSF classes.

Last edited by Dragonhawk on Thu May 18, 2006 4:52 pm, edited 1 time in total.
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- camthepyro
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Non-american and non-japanese? What else is there?(non-American and non-Japanese motorcycle manufacturers usually list horsepower).

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- fiveoboy01
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