Tyre Change

All the information you need is printed on the sidewall. It may show on different position depending on the design of various brands and patterns. Almost private car tires will looking like "●●● / ●● R ●●" to indicate the size of the tire.


Examples:

a.jpg

Each set of numbers represents a different meaning, which is "[TYRE WIDTH] / [ASPECT RATIO] R [RIM DIAMETER]"

b.jpg

There will also be a numeric code with an alphabet after the tire size, which represents the maximum speed and maximum load of each tire:

Code Kilograms Code Kilograms Code Kilograms
60 250 80 450 100 800
61 257 81 462 101 825
62 265 82 475 102 850
63 272 83 487 103 875
64 280 84 500 104 900
65 290 85 515 105 925
66 300 86 530 106 950
67 307 87 545 107 975
68 315 88 560 108 1000
69 325 89 580 109 1030
70 335 90 600 110 1060
71 345 91 615 111 1090
72 355 92 630 112 1120
73 365 93 650 113 1150
74 375 94 670 114 1180
75 387 95 690 115 1215
76 400 96 710 116 1250
77 412 97 730 117 1285
78 425 98 750 118 1320
79 437 99 775 119 1360

Speed Category
S 180 km/h ( 112 mph )
T 190 km/h ( 118 mph )
U 200 km/h ( 124 mph )
H 210 km/h ( 130 mph )
V 240 km/h ( 149 mph )
W 270 km/h ( 168 mph )
Y 300 km/h ( 186 mph )

According to Hong Kong’s road conditions and legal restrictions, an S speed or above is enough.