How extraordinary. Yarra Trams has run out of new wheels for the ageing Z and B model trams and so has reduced peak services as there are insufficient trams with sound wheels to operate the full service. Radio 3AW explains it here.
Apparently it is beyond Australia's, a huge iron ore exporter, capability to make a steel wheel and we import tram wheels. From where you may wonder? One of the great tram cities of the world such as Budapest, Amsterdam, Prague, Moscow? Even maybe cities with more modern trams/light rails like the US, UK and France? The Middle East even.
No, from the great tram country known as South Africa, which as far as I know doesn't have trams.
We have the trams, we have the tracks, we have the wires, we have the staff, but our trams don't have wheels. You really wouldn't read about such incompetence.