I think you will find because I stopped in HKG more than a day and I checked in again for the next sector some days later the baggage allowance switches to the route I was flying which was Japan and that was only one PC of baggage. For me it s not a big problem and the staff were very friendly about the whole thing. They just got a huge Cathay Pacific box and put my two bags inside it and taped it up to become one.

Maximum combined weight (See Note 1):
First: 40kg (88lbs)
Business: 30kg (66lbs)
Premium Economy: 25kg (55lbs)
Economy: 20kg (44lbs)
Note:

1. The weight of any single piece of checked baggage should not be over 32kg (70lb). Acceptance of any bag weighing more than 32kg (70lb) is subject to prior approval and notification upon booking/ reservation. Overweight items (Exception: mobility aids, medical equipment, sporting equipment, musical instruments, camera equipment, household effects, pets as baggage and diplomatic baggage) will be repacked or split into lighter units during check-in otherwise will not be accepted for carriage.

Any bag exceeding the total dimensions of 203cm (80in) (width + height + length) will not be carried as accompanied baggage unless prior notification is made with us upon booking/ reservation and approval is granted by us.