Originally Posted by
69chevy
GCN did a blind test between Dura-Ace and 105 and had trouble guessing which was which on the trainer.
True but I'm willing to bet that since they didn't swap the groupsets onto the same bike each tester could tell the difference from the instant they climbed on...
I believe they tried to honestly evaluate the groupsets but certainly if you know what group you're riding by the feel of the handle bars, the saddle, the reach, etc... it has to color your opinion to some degree, right?