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PostPosted: Wed Oct 24, 2012 11:07 am 
BoTM Winner
BoTM Winner

Joined: Thu Jan 19, 2006 1:23 pm
Posts: 2765
Location: NW England
I remember Graeme Obree used to use shoes attached directly to the pedal spindle, did that get outlawed?


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PostPosted: Thu Oct 25, 2012 2:00 pm 
Devout Dirtbag

Joined: Sun Sep 16, 2012 7:03 am
Posts: 117
What is the power output of a rider in BHP?

I (think I) remember hearing that even the top riders only put out 1/4 BHP .

That is a lot less than I imagined it would be.


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PostPosted: Thu Oct 25, 2012 2:24 pm 
Retro Guru
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Joined: Thu May 08, 2008 4:18 pm
Posts: 2336
Apparently Hoy's maximum power (only delivered briefly, of course) was almost 2,500W at his peak. That's over 3hp. 0.25hp is about what you'd need to maintain 20mph on a flat road.


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PostPosted: Thu Oct 25, 2012 2:27 pm 
Devout Dirtbag

Joined: Sun Sep 16, 2012 7:03 am
Posts: 117
Ta.

Blimey, I reckon I could just push out 3/4 BHP if I needed to!

Does that mean Chris Hoy can do 80mph on the flat? :lol:


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PostPosted: Thu Oct 25, 2012 2:37 pm 
Retro Guru
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Joined: Thu May 08, 2008 4:18 pm
Posts: 2336
You'd need about 8,000W to do 80mph on the flat -- air resistance increases as the square of velocity :)


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PostPosted: Thu Oct 25, 2012 3:01 pm 
Devout Dirtbag

Joined: Sun Sep 16, 2012 7:03 am
Posts: 117
Physics can be a real downer.


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PostPosted: Thu Oct 25, 2012 3:13 pm 
Retro Guru
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Joined: Thu May 08, 2008 4:18 pm
Posts: 2336
As a wise man once said, "If it wasn't for physics and law enforcement, I'd be unstoppable" :)


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