YOTO Payload is the number a cargo vehicle is bought for, and it is the number most often inflated. Not always deliberately — the error usually comes from reading the wrong field on the certificate, or from copying a number that was never a payload in the first place.
The only calculation that counts #
| Field | Value | What it is |
|---|---|---|
| 2.1.1 | 506 kg | Mass in running order — the empty vehicle |
| 2.1.3 | 1,185 kg | Permissible maximum laden mass — the loaded ceiling |
| Derived | 679 kg | Payload — what you may actually carry |
| Brochure claim | 1,183 kg | Actually field 2.1.3 with a transcription slip |
Figures from a single-seat cargo quadricycle in this range. The 1,183 kg claim overstated real payload by 74%.
Why the mistake is so common #
- The laden mass is the largest mass number on the certificate, so it looks like the impressive one to quote.
- In some markets the trade uses "load capacity" loosely for the vehicle’s gross weight, a translation artefact from the original sheet.
- Nobody at the supplier checks, because nobody at the supplier has been challenged.
- The buyer discovers it when an inspector weighs the vehicle, which is the worst possible moment.
What overstatement costs #
If a fleet buys on a claimed 1,183 kg and plans routes around it, the first overloaded run is a legal exposure for the operator and a warranty argument for the supplier. In a tender, a payload figure that cannot be traced to a certificate field is a scoring risk. And at inspection, an overloaded vehicle is the operator’s fine, not the supplier’s — which is exactly why the operator will come back to the supplier.
The three questions to ask #
- What is the permissible maximum laden mass on the certificate?
- What is the mass in running order for the battery chemistry I am ordering?
- What is the difference — and does it match the payload you quoted me?
A supplier who can answer all three from one page is a supplier who has read the document. That is a better signal than any specification table.