Max permitted oversize checked luggage on SQ = 220cm x 75cm x 80cm Wt 32kg.

I went through this very exercise on Monday when I brought a bicycle home from PVG-SIN-MEL - carton was 130cm x 25cm x 55cm Wt 22kg - not a problem at all - carton arrived in perfect condition.

Oversized sporting equipment treated differently and I do not really know restrictions as I was not interested so did not inquire.