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What is the Right Tyre for You?

Finding the correct tyre size for your car can be a little confusing. If you need advice, you can contact our expert technicians at any Modern Tyres branch nationwide, we would be happy to help.

However, if you would like to double-check, we have a guide to help you by simply reading the markings on the side of your current tyres:

Written on the sidewall of your car tyre is the name of the tyre manufacturer and a set of numbers and letters that relate to the tyre size. For example:

205 55R 16 91V

  • 205 is the tyre width in millimetres.
  • 55 is the tyre profile, or aspect ratio.
  • R is the tyre’s construction type – R would mean that it is of radial construction.
  • 16 is the diameter of the rim in inches.
  • 91 is the load index of the tyre.
  • V is the tyre’s speed rating.

The letter that denotes the speed rating of the tyre indicates the maximum speed at which the tyre should be driven.  Here is a table of the car tyre speed rating symbols:

Speed symbol Maximum speed km/h
N 140
P 150
Q 160
R 170
S 180
T 190
H 210
V 240
W 270
Y 300
ZR 240

The load index of the tyre denotes the maximum load capacity of your tyre when driven at its maximum speed:

Load Index kg Load Index kg
65 290 94 670
66 300 95 690
67 307 96 710
68 315 97 730
69 325 98 750
70 335 99 775
71 345 100 800
72 355 101 825
73 365 102 850
74 375 103 875
75 387 104 900
76 400 105 925
77 412 106 950
78 425 107 975
79 237 108 1000
80 450 110 1030
81 462 110 1060
82 475 111 1100
83 487 112 1120
84 500 113 1150
85 515 114 1180
86 530 115 1215
87 545 116 1250
88 560 117 1285
89 580 118 1320
90 600 119 1360
91 615
92 630
93 650

You can find out more online today about the car tyre services at Modern Tyres or you can book a free tyre safety check online today.