I'm going to purchase a freewheel but before I do I want to make sure I'm buying the right one. I plan on getting a Miche Advanced crank with a 49 chainring. I live in NYC and there aren't that many hills here. The biggest hill I'll probably climb is the 59th street bridge. Sheldon says that for street riding a gain ratio of 5-5.3 is ideal. I'm considering a 19t freewheel which would give me a 5.4 gain ratio or 69.6 gear inches.
Wanted to see if a 49/19 ratio makes sense for my terrain and to what others have experienced.