Originally Posted by
Farby
Thanks for the replies. It's good to hear the performance is not too different between the groups.
I guess I'll have to figure out how important weight is to me. 170 grams between the two groups doesn't sound bad at all. I'd love to add a spidering hollogram crank, but that just throws cost into an entirely different realm. It may seem silly but I'd really like to go a little weight weenie on this bike. I know it's engine first, but i find the "make it as light as possible" aspect fun.
I weigh options heavily and research for months before I finally make a decision and greatly appreciate everyone's input.
I had a campy chorus 10 speed bike and although I liked it, I'm going shimano this time around.
105 is a huge step down, huge, from Chorus and Ultegra is definite step down. Chorus and Dura Ace are peers. You will see after a year or so. If your ride on the hoods you will see much faster.
You will get pushed from bike stores to get Shimano because they make so much money when repairs have to be made and they find it much easier to replace whole components rather than parts.