Selling my bike I used for a couple years in grad school. It's a GREAT bike! It needs a bit of love as I've had it sitting outside for the last couple years, so it hasn't had a tune up in a long time and has some rust. It's probably around 55cm (I'm 5'7). $100

I also have a bike rack for sale for $50, barely used! The paints a bit faded since it's been sitting outside getting dusty, but works totally fine.