To be clear, I had help assembling it. She made sure the frame was full of air. Nothing worse than riding on a deflated steel frame!
@Andres4NY now you got me picturing a bike with an inflatable frame that gets sufficiently rigid under significant pressure

@dx Oh you mean blo-moly?

(It didn't take me an hour to come up with that, I swear - I meant to toot it much earlier but had to put kids to bed)