I'm planning to switch out my commuting bike with a single speed fitted with IGH. I would also like to make it my travel bike and around town beater.

I'd like to keep it in the 22 lbs range and under $400 if possible. I've seen the cheap 26 lbs single speeds, and the expensive ones too. Right now, I'm contemplating on building a leader 725 or aventon, since both appear to be decent frames, for <$200. I have no idea about the wheels though, but I'll be putting on a couple of 25 tires on them.

anyone have suggestions for what I want to do?