stunt parking

[Cycleops]

Might be a secret sign of freemasonry. And of course he would have had one trouser leg rolled up. That settles it.

 

[tyred]

Avoiding flat spots on the tyres.

 

[CharleyFarley]

It was parked like that to confuse bike thieves who aren't too bright, anyway. Bike thieves know that tires go next to the ground, and the saddle and handlebars are on the top. An upside-down bike sends their tiny brains into a spin so that they have to take a rest. Mission accomplished!