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BigO Tire
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Ratio
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How to pick the right trailer tire

For light loads, heavy tows and everything in between, look for these premium features when shopping for trailer tires:

  • Outstanding traction in wet and dry conditions
  • Low rolling resistance
  • Smooth ride
  • Enhanced towing stability, even at highway speeds
  • Protection from heat build-up.
Vanguard STR II
Size
Speed Rating
Load Index
Ply Rating
Single Load
Dual Load
Outside Diameter
ST175/80R13 91/87L C
L
91/87
C/6
1360
1200
24.01
ST235/80R16 123/119L E
L
123/119
E/10
3420
3000
30.78
ST205/75R14 100/96L C
L
100/96
C/6
1760
1565
26.14
ST215/75R14 102/98L C
L
102/98
C/6
1870
1655
26.69
ST205/75R15 101/97L C
L
101/97
C/6
1820
1610
27.12
ST205/75R15 107/102L D
L
107/102
D/8
2150
1875
27.12
ST225/75R15 113/108L D
L
113/108
D/8
2540
2205
28.3
ST225/75R15 117/112L E
L
117/112
E/10
2830
2470
28.3
Trailer King II
Size
Speed Rating
Load Index
Ply Rating
Single Load
Dual Load
Outside Diameter
ST175/80R13 91/87L C
L
91/87
C/6
1360
1200
24
ST185/80R13 94/89L C
L
91/89
C/6
1480
1280
24.6
ST235/85R16 125/122L E
L
125/122
E/10
3640
3305
31.7
ST235/80R16 124/120L E
L
124/120
E/10
3520
3080
30.8
ST205/75R14 100/96L C
L
100/96
C/6
1760
1570
27.1
ST215/75R14 102/98L C
L
102/98
C/6
1870
1650
26.7
ST205/75R15 101/97L C
L
101/97
C/6
1820
1610
27.1
ST205/75R15 107/102L D
L
107/102
D/8
2150
1870
27.1
ST225/75R15 113/108L D
L
113/108
D/8
2540
2200
28.3
ST225/75R15 117/112L E
L
117/112
E/10
2830
2470
28.3
Goodyear Endurance ST
Size
Speed Rating
Load Index
Ply Rating
Single Load
Dual Load
Outside Diameter
ST225/75R15 117/112N E
N
117/112
E/10
2833
2470
28.29
ST235/80R16 123/119N E
N
123/119
E/10
3417
3000
30.8
ST235/85E16 125/122N E
N
125/122
E/10
3638
3305
31.73
ST205/75R15 107/102N D
N
107/102
D/8
2149
1875
27.11
ST255/85R16 129/125N E
N
129/125
E/10
4079
3638
33.07
ST205/75R14 105/101N D
N
105/101
D/8
2039
1819
26.11
ST215/75R14 108/103N D
N
108/103
D/8
2205
1929
26.7
Sailun S637T
Size
Speed Rating
Load Index
Ply Rating
Single Load
Dual Load
Outside Diameter
ST235/85R16 132/127L G
L
132/127
G/14
4409
3858
31.73
ST235/80R16 129/125L G
L
129/125
G/14
4079
3638
30.8
Trailer King RST
Size
Speed Rating
Load Index
Ply Rating
Single Load
Dual Load
Outside Diameter
ST175/80R13 91/87M C
M
91/87
C/6
1360
1200
24.02
ST235/80R16 124/120M E
M
124/120
E/10
3420
3000
30.8
ST205/75R14 100/96M C
M
100/96
C/6
1760
1570
26.11
ST215/75R14 102/98M C
M
102/98
C/6
1870
1650
26.7
ST205/75R15 101/97M C
M
101/97
C/6
1820
1610
27.11
ST205/75R15 107/102M D
M
107/102
D/8
2150
1870
27.11
ST225/75R15 113/108M D
M
113/108
D/8
2540
2200
28.29
ST225/75R15 117/112M E
M
117/112
E/10
2860
2470
28.29