Originally Posted by
AlexanderLS
"Hold on, I need to charge my bike first."
"My bike's battery exploded!"
The small motors could also fail.
Electronic shifting is not worth it, it weighs more and provides no day to day benefits.
Analogue shifting works just fine. "If it's not broke, don't fix it."
Ultegra Di2 does weigh more than Ultegra mech by less than 1/2 lb, Dura Ace Di2 weighs less than Dura Ace mech.