Originally Posted by DannoXYZ
Show me just one double-blind study that has passed peer-review where frame-flex results in less power making it to the rear-wheels and causes slower speeds.
I don't know about that one, but there was a double blind study done with identical bikes except for stiffer chainstays on one of three bikes. Cornell University IIRC, (from an old Bridgestone or Rivendell Reader) The riders couldn't tell the difference.