So, until my new folder arrives, I decided to fix up my Citizen Miami. The rear wheel became egg shaped due to missing spokes. I found my old BMX style bike from when I was a little kid. Last time I rode it was over 15 years ago. I removed its back wheel (same 20in size) and replaced my current wheel. Now I have a single speed freewheel on the Citizen. After buying a new chain for 5 bucks, and using some links from the old BMX chain, I was in business. It will get me to and from work for a while.