Math isn't mathing
Looking at a Genesis Supreme 281KS FW toyhauler. The stated GVWR is 14,000. The hitch weight is 2,610. It has 2 7,000 lb axles. Dry weight is 10,820 which leaves 3,180 cargo capacity. Throw in 160 g...
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Just a guess but I would assume the manufacturers have to account for things like the actual chassis strength in the ratings. Just because the axles are rated at 7,000 each doesn't mean that the frame is strong enough to be rated to more than 14,000. On top of that the manufacturer has to factor in a safety margin to keep people safe and more importantly reduce their liability risk.
Agreed. The capacity is always the lesser of a myriad of components. The weakest link if you will. Grand design is a good example of over rated FW frames that lead to a lot of frames cracking. Over rated or under engineered, take your pick. ex: It's not uncommon for a lot of gas MHs to have a 10k hitch but not have the capacity to even tow a small car.
