Originally Posted by
rumrunn6
what weight do you think each aspect of a bike ride affects your efficiency or speed? are they all equal, or do so some matter more?
riding surface
bike type
tires
wind
human motor
ambient temperature
bike weight
bike age
quality of components such as wheels & bearings
other
IMHO, take away age of the bike and the answer to your question is Yes, all of the above.
Age of the bike is not a factor. One of my fastest bikes is a 1999 Lemond Zurich, but all of the components have been updated big time to much lighter, better performing components.
As to which of the above is the biggest factor, sadly it's the human motor. In that regard, age is, sadly, a big factor.