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2 comments
In my experience Ultegra is slightly less hard wearing than 105 as a function of slightly lighter materials being used, I think this applies across the top three Shimano groupsets (I was told by Harry Tanfield, no less, in an online discussion that the only difference as far as he was concerned between Ultegra and Dura Ace was that the latter was more fragile). I'd stick to 105.
Thank you very much for the quick reply and info.
I'll order the 105.