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Your tire sidewall has a series of numbers that show your specific tire and wheel size. Match the numbers from your tire to one of the size options below.

Hover over the icons below to see an example diagram.

Metric Tire Dimensions
Metric Tire Dimensions

Section Width

195
205
215
225
235
245
255
265
270
275
285
295
305
315
325
345
355
365

15.5
6.5-
6.7-
7-
7.1-
7.5-
8-
8.25-
8.5-
8.75-
9-
9.5-
10-
10.5-
11-
12-
14-

Floatation Tire Dimensions
Floatation Tire Dimensions

Tire Diameter

27x
28x
29x
30x
31x
32x
33x
34x
35x
36x
36.5x
37x
38x
39.5x
40x
42x
44x

CR78-
GR78-
HR78-
LR78-
NR78-
QR78-
USAR78-

Metric Tire Dimensions
Metric Tire Dimensions
Floatation Tire Dimensions
Floatation Tire Dimensions
Metric Tire Dimensions
Metric Tire Dimensions

Ratio

0
7.5
8.5
9
9.5
10.5
11.5
12.5
13.5
14
14.5
15
15.5
16
17
18.5
35
40
45
50
55
60
65
70
75
80
85
Metric Tire Dimensions
Metric Tire Dimensions

Diameter

13
14
14.5
15
15.5
16
16.5
17
17.5
18
18.5
19
20
22
24
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