Load Index 21

Load index — max weight per tyre83 kg / 183 lbs

Four of them carry 332 kg in total.

psi

Reference pressure — where that load rating applies36 psi / 248 kPa · 2.48 bar

Not a recommended pressure — set yours from the placard in the door shut. Below this, the tyre carries less than 83 kg.

Nearby indices

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Defined in UN vehicle regulation.

Where load index 21 is on the tyre

It is the number just after the rim size. Here it is on an example 205/55R16 — yours will read differently, but the 21 sits in the same place.

21 Load index

Each tyre carries up to 83 kg at 36 psi — 332 kg across four.