jamesl, you don't ride fixed without foot retention, do you?
No. The bike's a single speed -- the rear cog is a BMX freewheel.
By the way, I bought this bike as a frame only. I assembled it from parts I had in the storage shed -- the front fork was from a taller bike and I section the steerer tube to fit and welded it back together. It's definitely a Frankenstein creation. I would never turn a rideable classic -- even a Varsity -- into a single speed or fixed gear.