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andyp
@beseku
Utter novice question: On a Specialised Allez from 2008, stock except for Shimano RS11 wheels and replaced shifters, I want to replace the entire groupset with 105, preferably 11 speed. With a bike thats 6 years old, are there going to be any compatibility issues? It's all stock Shimano including the BB which is Hollowtech I think.