Originally Posted by
vespasianus
The electronic systems don't really shift better than a good mechanical system (been riding Ultegra Di2) but I assume they will stay consistent over time. Actually surprised at how unremarkable Di2 shifting is....
Recently I've had a couple rides on my GFs Canyon Ultimate w/DI 2. For frame of reference I ride 105, Dura Ace, Ultegra and SRAM Red all mechanical on my bikes. The DI 2 was set up semi-synchro. I was surprised to be unimpressed. In the beginning it seemed "nice" but with time and experience I can't find a reason to abandon mechanical. And, I am changing it to "mechanical" mode 'cause it drives my GF nuts.