Originally Posted by
roadCruiser76
I ended up pulling the trigger on this bike. It's a Specialized Tarmac Expert Disc. The shop had no problem swapping out the 11-30 for the 11-34. I went on my first long ride with the new bike yesterday and I have to say I love it. I'm still getting a little used to the Di2 shifting, which seems to operate slightly differently than mechanical when shifting to a larger cassette or smaller chainring. I'm sure it will be second nature soon enough.
Nice bike! If not already explained by someoneelse here or by your LBS, DI2 comes with 3 different modes (manual, semi-synchro and synchro shifting). You might want to play with the 3 modes to see which one you like. Personally, I use semi-auto because I like to control my FD.