Speed raating is alpha or alpha-numeric code which indicates the speed category of the tyre, which can depend on operating conditions and the type.Speed catogory indicates the maximum speed which the tyre can sustain, expressed by the speed symbol, which is part of the service description.

Tyre identification consists of a load index (LI) (or two load indices in the case of single/dual fitments) and speed rating. Example: 94**V**. Speed rating V is maximum 240 km/h.

Tyre Speed Symbols and corresponding speeds | |

Speed Rating |
Speed km/h |

A1 | 5 |

A2 | 10 |

A3 | 15 |

A4 | 20 |

A5 | 25 |

A6 | 30 |

A7 | 35 |

A8 | 40 |

B | 50 |

C | 60 |

D | 65 |

E | 70 |

F | 80 |

G | 90 |

J | 100 |

K | 110 |

L | 120 |

M | 130 |

N | 140 |

P | 150 |

Q | 160 |

R | 170 |

S | 180 |

T | 190 |

U | 200 |

H | 210 |

V | 240 |

W | 270 |

Y | 300 |

- ISO 4223-1 : 2017, Definitions of some terms used in the tyre industry —— Part 1: Pneumatic tyres

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