Whats the real story behind the so-called ideal pedal height for cross-country bikes - is it truly a one-size-fits-all affair, or are we just regurgitating outdated conventional wisdom. Ive seen plenty of riders with their saddles slammed all the way down, while others are riding around with their knees splayed out at 90 degrees - which one is actually more efficient. Does the type of terrain play a role in determining optimal pedal height, or is it all about personal preference. And what about the impact on power output and comfort - are we sacrificing one for the other by adhering to some arbitrary standard. Lets get to the bottom of this and separate fact from fiction - whats the science behind pedal height, and how can we use it to optimize our ride.