Can drivetrain efficiency really be that crucial to power meter readings? I mean, are we really talking a few percent difference between a silky-smooth, precision-tuned drivetrain and a clunky, worn-out mess? Because if so, thats a whole lotta fuss over not a whole lotta gain.
Perhaps Im just not getting it, but doesnt the power meter just, you know, measure power? I thought it was a direct measurement, not some indirect calculation thats affected by whether your chain is clean or your cassette is worn out. And what about all the other variables that affect power output - like, say, your legs? Dont they have a way bigger impact on your power numbers than whether your derailleur is properly aligned?
But hey, Im no engineer, so maybe Im just missing something. Maybe theres some voodoo magic going on in there that makes a 1% difference in drivetrain efficiency translate to a 5% difference in power output. Maybe all you pros out there can enlighten me.
So heres the question: just how much does drivetrain efficiency really affect power meter readings? Is it a significant factor, or is it just a bunch of nitpicky nonsense? And if it is significant, what are some actual, measurable numbers were talking about? Because Im just not convinced that spending hours tweaking my derailleur is going to make a tangible difference in my power output.
Perhaps Im just not getting it, but doesnt the power meter just, you know, measure power? I thought it was a direct measurement, not some indirect calculation thats affected by whether your chain is clean or your cassette is worn out. And what about all the other variables that affect power output - like, say, your legs? Dont they have a way bigger impact on your power numbers than whether your derailleur is properly aligned?
But hey, Im no engineer, so maybe Im just missing something. Maybe theres some voodoo magic going on in there that makes a 1% difference in drivetrain efficiency translate to a 5% difference in power output. Maybe all you pros out there can enlighten me.
So heres the question: just how much does drivetrain efficiency really affect power meter readings? Is it a significant factor, or is it just a bunch of nitpicky nonsense? And if it is significant, what are some actual, measurable numbers were talking about? Because Im just not convinced that spending hours tweaking my derailleur is going to make a tangible difference in my power output.