Originally Posted by
gsa103
If left/right balance is that important then powertap doesn't measure that either. If you don't care about left/right, stages is basically as good as anything else.
I have yet to see any data that indicates that a left/right imbalance is actually an issue.
You can look up the research on pubmed. What they've found is that the for a given rider the balance between left and right is not necessarily consistent, i.e. one day it might be 45/55 and on another it could be 55/45. Or it could change in the middle of a ride. Knowing the left/right balance isn't important if you know the sum which is what most powermeters, including the PowerTap, will give you.