Just an idea to put the official list up in tutorials and tips.
Antweight (AW) = 125 kgs
Beeteweight (BW) = 175 kgs
Lightweight (LW) = 249 kgs
Middleweight (MW) = 399 kgs
Cruiserweight (CW) = 600 kgs
Heavyweight (HW) = 800 kgs
SuperHeavyweight (SHW) = 1200 kgs
UltraHeavyweight (UHW) = 5000 kgs
GigaHeavyWeight (GHW) = 10000 kgs
For the Ironforge TC mod, these weights vary:
AW - 70kg
BW - 90kg
LW - 125kg
MW- 200kg
HW- 400kg
SHW - 600kg
And nothing else !