Thinking about a new groupset for my road bike - tossing up between Ultegra Di2 and Campy Chorus..
I know they are total different beasts and is down to a matter of personal preference/feel but I'd be interested in anyone's thoughts if they've had experience with either (or both).
I really want di2, but I've heard horror stories abouth what happens when it suddenly stops working and you're stuck on one gear for hours, and it's hard to find someone who can fix it. Personally I'd probably go with ultegra mechanical, every shop will have experience and the spare parts necessary for repairs and it is very close to dura ace in function, but cheaper. 105 would probably work just as well, my rear deraillieur is 105 now because that was all the shop had in when i wanted to put on a 30 tooth cassette for the alps, and I can't really tell the difference between this one and my ultegra.