Data taken from BF Goodrich Offroad website Oct/07
|
Tire Size |
Load Range |
Rim Width/Inches |
Diameter Inches/Inflated |
Max Load Lbs/psi
|
|
35x12.50R18 |
D |
8.5 - 11 |
34.8 |
2910@50
|
|
37x12.50R17 |
D |
8.5 - 11 |
36.8 |
3525@50
|
|
37x12.50R18 |
D |
8.5 - 11 |
36.8 |
3415@50
|
|
37x12.50R20 |
D |
8.5 - 11 |
36.8 |
3085@50
|
|
38x14.50R17 |
D |
10 - 12 |
37.8 |
3195@50
|
|
40x14.50R17 |
C |
10 - 12 |
39.8 |
3195@35
|
|
42x14.50R20 |
C |
10 - 12 |
41.8 |
3640@35
|
|
LT245/70R17 |
E |
6.5 - 8 |
30.8 |
3000@80
|
|
LT285/70R17 |
D |
7.5 - 9 |
33.0 |
3195@65
|
|
LT305/55R20 |
E |
8.5 - 11 |
33.5 |
3195@65
|
|
LT305/60R18 |
E |
8.5 - 11 |
32.6 |
3195@65
|
|
LT305/65R17 |
E |
8.5 - 11 |
32.8 |
3195@65
|
|
LT315/75R16 |
D |
8 - 10 |
34.8 |
3195@50
|
|
LT325/60R20 |
D |
8.5 - 11 |
35.6 |
3195@50
|
|
LT335/55R22 |
D |
9 - 12 |
36.7 |
3195@50 |
US Department of Transportation SPECS:
|
Load Range |
Ply Rating |
|
A |
2 |
|
B |
4 |
|
C |
6 |
|
D |
8 |
|
E |
10 |
|
F |
12 |
|
G |
14 |
|
H |
16 |
|
J |
18 |
|
K |
20 |
|
L |
22 |
|
M |
24 |
|
N |
26 |
|
|
Speed Rating |
Max Speed MPH |
M |
81 |
|
N |
87 |
|
P |
93 |
|
Q |
100 |
|
R |
106 |
|
S |
112 |
|
T |
118 |
|
H |
130 |
|
V |
149 |
|
W |
168* |
|
Y |
186* |
*For tires with a maximum speed capability over 149 mph, tire manufacturers sometimes use the letters ZR. For those with a maximum speed capability over 186 mph, tire manufacturers always use the letters ZR.