Hi I am brand new to cycling and I'm considering buying a fixed gear bike as my first bike. I have a bunch of questions, forgive my noobishness.
I am mainly a runner, I train for marathons and half marathons. My main purpose for buying a bike would be for cross training - so the most I'd probably ride my bike would be on my cross training days for about an hour. I would also consider using the bike to commute to work in the summer - I work about 15 miles from my house. I would also use the bike to run errands and occasionally go on recreational rides with my wife, who's also new to biking. We have a baby though so there's a chance I may have to tow a baby trailer.
I live in Chicago so the terrain is flat but I have to ride through a lot of traffic, winters are brutal here so I'll probably not be riding December through February.
Would a fixed gear bike be the best choice for me?
I'm considering a motobecane messenger or a mercier kilo tt. I don't want to spend more than 300-400. Are these good starter bikes? Any other tips or suggestions? Thanks!