We have not installed a machine in Chêne-Bourg yet. The nearest one is at La Poste de Thônex, 0.6 km away. Chêne-Bourg and Thônex adjoin one another: this is the shortest trip in the whole network from a neighbourhood without a machine.
Stock is read straight from the slots. Check before you set off and you will know whether the trip is worth it.