Originally Posted by
Amt0571
If you carried a spare, as I usually do, you could have replaced that on the road. You can't do that when a Di2 goes haywire.
Pffft. I have a spare groupset in my left pocket next to the spare frame in the right pocket. The only mechanical problem I can't deal with on the side of the road is a taco'd wheel, but that's ok because I'm hungry.