Alfa Romeo 166 Specifications download pdf (Page 249)

248

CORRECT TYRE READING

Below are the instructions necessary to know the meaning of

the code stamped on the tyre.

The code may be like one of the examples given below.

225 = Nominal width (distance in mm between the sides).

45 = Percentage height/width ratio.

R = Radial tyre.

ZR = Radial tyre with speed above 240 kph.

17 = Rim diameter in inches.

91 = Load (capacity) index, e.g. 91 = 600 kg. Not present in

ZR tyres.

Y, Z = Maximum speed index. In ZR tyres the speed index Z is

before the R.

Load index (capacity)

60 = 250 kg 84 = 500 kg

61 = 257 kg 85 = 515 kg

62 = 265 kg 86 = 530 kg

63 = 272 kg 87 = 545 kg

64 = 280 kg 88 = 560 kg

65 = 290 kg 89 = 580 kg

66 = 300 kg 90 = 600 kg

67 = 307 kg 91 = 615 kg

68 = 315 kg 92 = 630 kg

69 = 325 kg 93 = 650 kg

70 = 335 kg 94 = 670 kg

71 = 345 kg 95 = 690 kg

72 = 355 kg 96 = 710 kg

73 = 365 kg 97 = 730 kg

74 = 375 kg 98 = 750 kg

75 = 387 kg 99 = 775 kg

76 = 400 kg 100 = 800 kg

77 = 412 kg 101 = 825 kg

78 = 425 kg 102 = 850 kg

79 = 437 kg 103 = 875 kg

80 = 450 kg 104 = 900 kg

81 = 462 kg 105 = 925 kg

82 = 475 kg 106 = 950 kg

83 = 487 kg

Example:

225/45 R 17 91 Y

225/45 ZR 17

1 2 ... 244 245 246 247 248 249 250 251 252 253 254 ... 271 272

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Alfa Romeo 166 Specifications Page 249