I found a new piece of evidence that it's a fixed gear: https://www.youtube.com/watch?v=cZhrqKrljig&t=265 https://www.youtube.com/watch?v=cZhrqKrljig&t=265 The

I found a new piece of evidence that it's a fixed gear: https://www.youtube.com/watch?v=cZhrqKrljig&t=265 https://www.youtube.com/watch?v=cZhrqKrljig&t=265 The pedals continue to be pushed forward when the rear wheel is rotating freely. With a freewheel, this shouldn't happen (the pedals can drive the rear wheel when they're moving forward but not backward, while the wheel can drive the pedals backward but not forward). But I'm still confused about the lack of visible pedal movement during the initial towing part of the record video. It seems like she was towed more than far enough that the pedals should have needed to move visibly with a fixed gear.