The movement came from two ideas: the floor is lava game and attempting to slalom the entire bike rack. With this much bigger movement doing the latter is really hard, it may be possible but I wasn't making much progress with it. The move is a fun way to work on generating and then controlling momentum precisely (unless you like banging your shins into metal poles). Be mindful of the width of the bike rack, if it's too wide then this particular version doesn't work.
I'd give some hints about little tricks to make the technique work more fluidly, but in this case it's far more interesting to discover what works on your own. ;)