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The Testers Manual

Tyre Size, Ply Rating and Load Index Tables

How to use this table:

1. Locate the line entry corresponding to the size and ply rating or load index marked on the tyre sidewall;

2. Read off the maximum axle load (kg) for these tyres in ‘SINGLE’ or ‘TWIN’ formation, as appropriate.

3. These tables show the maximum axle load for tyres in single and dual (twin) formation. If a tyre has only one load index marked, then that index refers to use in single formation. Such tyres can be used in dual formation by applying the following formula:

Max. load in dual formation = Max. load shown for single x 1.91

Nominal tyre size	Ply Rating	Load Index	Max axle Load	(kg)
Nominal tyre size	Ply Rating	Load Index	Single Tyres	Twin Tyres
145-13c 145-13c	6 8	83/81 88/86	970 1120	1840 2120
560-13c	6	-	1020	1940
590-13c	6	-	1070	2090
640-13c 640-13c	6 8	- -	1280 1430	2240 2750
670-13 670-13c 670-13 670-13c	- 6 - 8	94/93 - 99/98 -	1340 1380 1550 1580	2600 2650 3000 3050
155-14c	6	-	1070	2040
175-14 175-14c 175-14c	- 6 8	96/94 - 99/98	1420 1430 1550	2680 2680 3000
185-14 185-14 185-14 185-14c 185-14c	Radial Reinforced rad Reinforced 4pl 6 8	- - 94 99/97 102/100	1200 1340 1340 1550 1700	2300 2560 2560 2920 3200
195-14 195-14c 195-14c	- 6 8	102/100 - 106/104	1700 1700 1900	3200 3210 3600
205-14 205-14c 205-14c	- 6 8	105/103 - 109/107	1850 1850 2060	3500 3510 3900
215-14c	8	112-110	2240	4240
590-14c	6	-	1170	2240
600-14c	8	92/90	1260	2400
640-14c	6	-	1330	2550
650-14 650-14c 650-14c	4 6 8	- 93/91 -	970 1300 1500	1860 2460 2840
670-14c 670-14 670-14c	6 - 8	- 101/99 -	1430 1650 1680	2750 3100 3160
Nominal tyre size	Ply Rating	Load Index	Max axle Load	(kg)
Nominal tyre size	Ply Rating	Load Index	Single Tyres	Twin Tyres
700-14c 700-14 700-14c	4 - 6	- 94/93 -	1070 1340 1380	2050 2600 2650
750-14 750-14 750-14c 750-14 750-14c	4 - 6 - 8	- 98/96 - 102/101 -	1200 1500 1530 1700 1730	2300 2840 2950 3300 3360
175/75-14	-	98/99	1550	3000
185/75-14	-	102/100	1700	3200
195/75-14	-	106/104	1900	3600
205/75-14	-	109/107	2060	3900
215/75-14	-	112/110	2240	4240
145-15c	8	91/89	1230	2320
185-15c	8	103/102	1750	3400
590-15c	6	-	1220	2340
640-15c	6	-	1380	2650
670-15 670-15c 670-15 670-15c 670-15	- 6 - 8 10	98/96 - 103/102 - 108/107	1500 1530 1750 1780 2000	2840 2900 3400 3460 3900
700-15c 700-15c 700-15c 700-15	6 - 8 12	- 103/102 - -	1750 1750 1940 2440	3400 3400 3760 4580
750-15c 750-15c 750-15 750-15	6 8 10 12	- - - -	1830 2060 2340 2750	3560 3970 4370 5340
255/75-15	-	118/116	2640	5000
175-16c 175-16c	6 8	98/96 101/99	1500 1650	2840 3100
Nominal tyre size	Ply Rating	Load Index	Max axle Load	(kg)
Nominal tyre size	Ply Rating	Load Index	Single Tyres	Twin Tyres
185-16c	8	104/102	1800	3400
195-16c	8	107/105	1950	3700
205-16 205-16c 205-16c	- 6 8	106/104 - 110/108	1900 1900 2120	3600 3610 4000
215-16c 215-16c	6 8	110/108 113/111	2120 2300	4000 4360
600-16 600-16 600-16 600-16 600-16	- 6 8 - 10 & Radial	95/92 - - 103/101 -	1380 1380 1530 1750 1830	2520 2550 2920 3300 3300
650-16 650-16 650-16 650-16 650-16 650-16	- 6 - 8 - 10 & Radial	98/97 - 104/102 - 108/107 -	1500 1530 1800 1830 2000 2040	2920 2920 3400 3460 3900 3900
700-16 700-16 700-16 700-16 700-16 700-16 700-16 700-16	- 6 - 8 - 10 12 12 & Radial	102/100 - 108/106 - 113/112 - 117/116 -	1700 1730 2000 2040 2300 2340 2570 2650	3200 3260 3800 3870 4480 4480 5000 5000
750-16 750-16 750-16 750-16 750-16 750-16 750-16 750-16	- 6 - 8 & Radial 10 - 12 & Radial -	108/106 - -112/110 - - 116/114 - 121/120	2000 2040 2240 2240 2500 2500 2900 2900	3800 3870 4240 4270 4720 4720 5600 5600
825-16 825-16	8 10	- -	2650 2850	4880 5440
900-16 900-16 900-16 900-16 900-16	6 - 8 - 10	- 114/111 - 119/117 -	2340 2360 2720 2720 3050	4370 4360 5140 5140 5600
175/75-16	-	101/99	1650	3100
185/75-16	-	104/102	1800	3400
195/75-16 195/75-16	- -	104/102 107/105	1800 1950	3400 3700
205/75-16	-	110/108	2120	4000
215/75-16	-	113/111	2300	4360
225/75-16 225/75-16	- -	116/114 118/116	2500 2640	4720 5000

The tyre load index table below shows the maximum axle load for tyres in single and dual (twin) formation that may not be listed in the size-load table above.

Load Index	Single kg	Dual kg
70	670	1340
71	690	1380
72	710	1420
73	730	1460
74	750	1500
75	774	1548
76	800	1600
77	824	1648
78	850	1700
79	874	1748
80	900	1800
81	924	1848
82	950	1900
83	974	1948
84	1000	2000
85	1030	2060
86	1060	2120
87	1090	2180
88	1120	2240
89	1160	2320
90	1200	2400
91	1230	2460
92	1250	2520
93	1300	2600
94	1340	2680
95	1380	2760
96	1420	2840
97	1460	2920
98	1500	3000
99	1550	3100
100	1600	3200
101	1650	3300
102	1700	3400
103	1750	3500
104	1800	3600
105	1850	3700
106	1900	3800
107	1950	3900
108	2000	4000
109	2060	4120
110	2120	4240
111	2180	4360
112	2240	4480
113	2300	4600
114	2360	4720
115	2430	4860
116	2500	5000
117	2570	5140
118	2640	5280
119	2720	5440
120	2800	5600
121	2900	5800
122	3000	6000

Issue Date: 10th January 2005

The Testers Manual

Tyre Size, Ply Rating and Load Index Tables

How to use this table:

1. Locate the line entry corresponding to the size and ply rating or load index marked on the tyre sidewall;

2. Read off the maximum axle load (kg) for these tyres in ‘SINGLE’ or ‘TWIN’ formation, as appropriate.

3. These tables show the maximum axle load for tyres in single and dual (twin) formation. If a tyre has only one load index marked, then that index refers to use in single formation. Such tyres can be used in dual formation by applying the following formula:

Max. load in dual formation = Max. load shown for single x 1.91

Nominal tyre size

Ply Rating

Load Index

Max axle Load

(kg)

Single Tyres

Twin Tyres

145-13c

145-13c

6

8

83/81

88/86

970

1120

1840

2120

560-13c

6

-

1020

1940

590-13c

6

-

1070

2090

640-13c

640-13c

6

8

-

-

1280

1430

2240

2750

670-13

670-13c

670-13

670-13c

-

6

-

8

94/93

-

99/98

-

1340

1380

1550

1580

2600

2650

3000

3050

155-14c

6

-

1070

2040

175-14

175-14c

175-14c

-

6

8

96/94

-

99/98

1420

1430