Tyres Articles How to read speed and weight indexes of tyres

Tire marking consists of several parts, indicating various tire sizes, indices of permissible speeds and loads, as well as additional qualities of tires.

Speed ​​and load indices are related indicators that are considered when buying tires.

Example tire marking: 215/55 R16 96H XL

What does it mean:
215 - tire profile width in millimeters.
55 - the height of the tire profile as a percentage of its width.
R - indicates the design of the tire, in this case the tire is radial.
16 - the diameter of the wheel (disk) in inches.

96 - load index, it is also the index of permissible load capacity of the tire.
H - tire speed index. the bigger it is, the faster you can ride on this bus. Moreover, with maximum speed you can ride for several hours in a row.

XL - Index, means a reinforced tire

The speed index and load are closely related.



Tire speed index

Tire Speed ​​Index Table

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
Speed ​​Index N P Q R S T U H V VR W Y Z ZR
km / h                  140 150 160 170 180 190 200 210 240 above 210 270 300 above 240 above 240


* speed indices Z and ZR have the same speed values ​​in km \ h



Tire load index

Tire load index table

Load index Max. load (kg) Load index Max. load (kg) Load index Max. load (kg)
50 190 67 307 84 500
51 195 68 315 85 512
52 200 69 325 86 530
53 206 70 335 87 545
54 212 71 345 88 560
55 218 72 355 89 580
56 224 73 365 90 600
57 230 74 375 91 615
58 236 75 387 92 630
59 243 76 400 93 650
60 250 77 412 94 670
61 257 78 425 95 690
62 265 79 437 96 710
63 272 80 450 97 730
64 280 81 462 98 750
65 290 82 475 99 775
66 300 83 487 100 800



Additional indexes and tire markings

XL or Extra Load is a reinforced tire with higher load ratings.

M + S or M&S tire index (Mud + Snow) - dirt plus snow. It is usually indicated on tires for SUVs

All Season or AS all season tires. Aw (Any Weather) - any weather.

RF \ ROF \ others - RunFlat tires. these are tires on which you can continue driving on a car at a speed of no more than 80 km / h with a FULL pressure drop in the tire (during puncture or cut).





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