SMMT Guide on Trailers > Trailer Tyre Speed Symbols
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Trailer Tyre Speed Symbols
| Speed Symbol |
Maximum car speed for which tyre is suitable | |
|---|---|---|
| km/h | mph | |
| L | 120 | 75 |
| M | 130 | 81 |
| N | 140 | 87 |
| P | 150 | 93 |
| Q | 160 | 100 |
| R | 170 | 106 |
| S | 180 | 113 |
| T | 190 | 118 |
| U | 200 | 124 |
| H | 210 | 130 |
| V | 240 | 150 |
| W ++ | 270 | 168 |
| Y ++ | 300 | 186 |
| ZR + | Over 240 | Over 150 |
Footnotes:
++ Tyres for speeds over 240 km/h may be marked for an interim period with both "ZR" and the relevant service description (e.g. 195/50ZR15 82W 195/50ZR15 82Y) to specify the tyre performance in the absence of a service description, consult the tyre manufacturer for actual maximum speed and the relevant load capacity.
+ Tyres with a marking "ZR" (e.g. 195/50ZR 15) are for speeds over 240 km/h
