Originally Posted by on the path

105 10-speed is miserable as far as shifting. I rode it for over 4 years, well over 15,000 miles. No matter how much, or how precisely I adjusted the cables, deraillers, et al, the shifting would revert to a guessing game. I want to think about other things when I'm riding.

11 speed is so much better. I ride for hours, days, and never a false or missed shift. Shifting between the rings is precise and dependable, and requires much less force applied to the lever. The feel of, and feedback from, both levers is decidedly superior to the 10 speed counterparts. The only thing these 2 generations have in common is the name 105.