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Old 02-13-07, 12:53 PM
  #18  
spambait11
Señor Mambo
 
Join Date: Jan 2004
Location: Fremont, CA
Posts: 1,406

Bikes: TST roadie, Cannondale CAAD 3, Surly Karate Stokemonkey Leap, Tern Cargo Node, Helix Alfine; 36er and 29er Triton Unicycles; a couple Bike Fridays; one Brompton; RadPower Radburro

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Originally Posted by Speedo
=The energy that goes into spinning up a wheel, you get back; it is conserved.
I guess it depends how you define "conserved" because someone else has argued that this is not accurate. He says the bike is a conservative system, but muscles are not. Thus you lose energy every time you pedal; energy does not all of a sudden go back into your leg. The discussion is in terms of frame flex, but it does get to this issue in a roundabout way.

http://bikeforums.net/showthread.php?t=268395
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