When my GF was away on a trip, I flet bored and wanted to do something.

I borrowed her bike to play with.

Slowly letting the air out of the tyres and then ride it. Had a small road downhill in mind. But the tyres were flat before I reached the hill.

So I inflated them, just a bit and they were flat again just in time to go down the road.

Short clips from the flats. Nice sounds from rubber (First time the were flat) and also from the innertube rolling up inside the tyre.

Movie 1920 x 1080