In his previous post, jmusits asked the difference between the Shimano 105 and Ultegra drive train. Obviously, the derailleur is certainly one of the major components of a group. However levers, brakes and cables also make a huge difference. I would like to extend jmusits' original question.
- What are the difference between 105 and Ultegra brake calipers? Is the brake performance better with the Ultegra components or is it only a weight question? What about the difference with Tiagra caliper?
- What are the difference between 105 and Ultegra levers? I can imagine that the mechanism for gear change is more accurate and smoother for the Ultegra. But what about the influence on the brakes?
I am quite interested on the brakes right now, since my girlfriend owns a road bike with cheap Tiagra components. The derailleur is not working properly and we were thinking of changing the derailleur for a better one. But is it worth to change the brake calipers and/or the levers as well? She likes the frame, but would like to have better brake performance and smoother gear change.
Thanks in advance.