The load bench

Will it carry what you carry?

Gross vehicle weight is only half the question. Set your load, then slide it along the deck — the axles trade against each other, and a truck can be well under its gross limit while over on the rear axle. That is what a weighbridge catches.

Front axle

3,139/ 3,300 kg

161 kg spare

Rear axle

3,521/ 6,600 kg

3,079 kg spare

The NQR81K carries this. 3,000 kg on a dropside, with 1,340 kg of allowance still spare and both axles inside their limits.

1 · The truck

2 · The body

The body is fitted locally and eats the allowance before the first bag goes on. This is why a published payload figure flatters every truck.

3 · What you are carrying

Payload3,000kg

60 bags cement33 bags maize3,000 litres water3 tonnes steel bar

4 · Where it sits

Load centre, behind the front axle2,365mm

behind the cabover the rear axle

Drag this with the weight unchanged. The axle gauges trade against each other — that is the lever, and it is how a truck under its gross limit still fails a weighbridge.

9 of 11 trucks take 3,000 kg on a dropside within gross weight — smallest first. Axle limits still depend on where you put it.

Quote the NQR81K Full specifications

What this calculation assumes

Unladen chassis assumed 62/38 front/rear — brochures do not publish the split.
Body mass is a typical local build, not a quotation.
Load treated as evenly distributed about the position shown.
Confirm against the actual body and a weighbridge before ordering.

Why axle loads, not just payload

Kenyan weighbridges check each axle, not only the gross figure. A truck loaded from the tailgate forward can sit a tonne under its GVW and still be over on the rear axle. Four of the trucks in this range can do exactly that at full payload.

Why the body matters

Isuzu supplies most of this range as a cab and chassis. The body is built locally and takes its share of the allowance before anything is loaded — a steel tipper can account for 2,400 kg of what a brochure calls payload.

Then come and weigh it

This is arithmetic on published figures, and it is close enough to choose a truck with. It is not a substitute for weighing the finished vehicle. Bring the body drawings to any branch and we will work it through with you properly.