I'm in the process of building my first FG/SS bike, mainly to be used for commuting to and from work each day. I will also be using the bike on weekends for casual rides with my wife. She has an Electra Townie and we ride on some local bike trails. We don't go very fast as her bike is a single speed and she prefers to casually cruise around. My question is this: will I want to switch to a freewheel for these rides? I'm thinking I will -!: I'd have to be constantly pedaling extremely slow to pace her. My next question is this: if that's the only time I use a freewheel on the bike, do I really need a rear brake?