Somewhat basic question: I'm looking at the head tube length on the Roubaix (54cm). The head tube length is 165mm, but the specs also state "20mm cone spacer and 20mm spacers". Just to be clear, the 165 doesn't include those right? So that's 205mm total height if I don't get rid of some of that spacer stack?

Trying to do the math on stack and reach for the Tarmac/Roubaix to see what sort of bar drop I'd have.