Shimano Interchangability and Shifter Question
I have a Trek Madone with a 105 Group.....you can buy Ultegra or even Dura Ace parts on Ebay (used) for ridiculously cheap compared to buying a Dura Ace bike or a new DA group. So can change these pieces out here and there....example can I put Dura Ace brakes on this bike without any hassle? How about the shifters.....the 105 hoods seem to be huge compared to bikes I have had in the past but might be my imagination...can I change the shifters without changing derailleurs and cables etc.
Thanks in Advance.