Quote Originally Posted by azfiddle View Post
When I purchased my Ruby, one of the LBS guys said that moving to the 105 components would give me the biggest "bang for the buck" and that there would be a less noticeable improvement moving to Ultegra. I definitely prefer the shifting with 105 than the Sora/Tiagra combo I had on my first bike.
I can understand him saying that, as 105 components are quite decent, but I noticed a big difference in the Ruby Comp with Ultegra. Such a difference that that's what I ended up buying. I think the Ultegra group was lighter - the whole bike just seemed faster to me. And quieter shifting.