Originally Posted by
StanSeven
The thing that still surprises me about Di2 after a year is shifting the front derailleur under a lot of force - standing while climbing for example. I just hit the button and it works smoothly - no backing off, no need to stop pedaling, and no hesitation by me. It just works!
Why is this any different from the current mechanical system? The physics are the same (a piece of metal moves from one place to another) whether the force comes from the muscles in your finger or an electromagnet. Is the latter stronger or faster?