Originally Posted by Fiery

So we are talking Fezzari Empire vs. Specialized Tarmac SL6? Fezzari size M with a 110 stem and a 10 mm conical spacer + 10 mm regular spacer will have 2 mm more stack and 3 mm more reach than a Tarmac size 56 with the same spacer setup and a 100 mm stem. Declared handlebar reach differences are meaningless in practice since everybody seems to measure them differently, and they change a lot anyway depending on how the bar is angled and how the shifters are positioned on it. For all intents and purposes, these two bikes are the same size.