I, too, have noticed the Mobike outbreak in Ealing (I had to Goggle 'orange wheeled bicycles' for an explanation). Apparently each bike has a GPS positioning locator. There's a bunch of the bikes parked outside Hanwell Station. My guess is that company Mobike will soon be familiarising themselves with the GPS co-ordinates for 'bottom of the River Brent'.
Tony Heath ● 3173d