As someone here said already, choice of component is mostly based on emotional factor.
105 is adequate. I don't think you will feel or see any shortcomings in recreational rides. It is a solid group. Performs well. Shifts well. I know lot of riders who are more than happy with the 105 group. Unless you are planning on racing anytime soon, save money by going with the 105 group.
Ultegra has improved considerably over the years. And if I'm not mistaken, it is lighter in weight than the 105. Shifting is slightly quicker and would be good for those who are starting to race. It respond faster than the 105. This is important if you want drop your opponent (being able to quickly put some distance between you and your unsuspecting opponent. Its psychological mostly)
Dura Ace is extremely quick in shifting. Again lighter than Ultegra. Definitely race quality.
Last thing. durablility and ruggedness of all three are about the same me think. Just because you are slightly overweight doesn't mean that Dura Ace would hold up better. 105 may hold up better for you.
I used Ultegra on my Litespeed Tachyon, Ultegra/shimono 600 on panasonic DS05000? and my current Obera Dama Race uses Campy's Athena group. (I'm not too happy with Athena. It's not as quick as dura ace or ultegra.)
Save the $1600.
Shawn



Reply With Quote

bikerHen
