|
18.4 or 480 dual rear tires and hub extension
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|
Row Spacing - inch
|
20
|
22
|
30
|
32
|
34
|
36
|
38
|
40
|
|
Drive Wheel - inch
|
Not available
|
Not available
|
60
|
64
|
68
|
72
|
76
|
80
|
|
Dual Wheel - inch
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Not available
|
Not available
|
120
|
128
|
136
|
144
|
152
|
160
|
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Extension for dual wheels (110.5-inch axle)
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Not available
|
Not available
|
Not required
|
5”
|
10”
|
10”
|
15”
|
Not available
|
|
Extension for dual wheels (118.5-inch axle)
|
Not available
|
Not available
|
Not required
|
Not required
|
5”
|
10”
|
10”
|
15”
|
|
520 or 20.8 dual rear tires and hub extension
|
|
Row Spacing - inch
|
20
|
22
|
30
|
32
|
34
|
36
|
38
|
40
|
|
Drive Wheel - inch
|
Not available
|
Not available
|
Not available
|
64
|
68
|
72
|
76
|
80
|
|
Dual Wheel - inch
|
Not available
|
Not available
|
Not available
|
128
|
136
|
144
|
152
|
160
|
|
Extension for dual wheels (110.5-inch axle)
|
Not available
|
Not available
|
Not available
|
5”
|
10”
|
10”
|
15”
|
Not available
|
|
Extension for dual wheels (118.5-inch axle)
|
Not available
|
Not available
|
Not available
|
Not available
|
5”
|
10”
|
10”
|
15”
|
|
620 or 710 dual rear tires and hub extension
|
|
Row Spacing - inch
|
20
|
22
|
30
|
32
|
34
|
36
|
38
|
40
|
|
Drive Wheel - inch
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
80
|
|
Dual Wheel - inch
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
160
|
|
Extension for dual wheels (110.5-inch axle)
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
15”
|
|
Extension for dual wheels (118.5-inch axle)
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
Not available
|
13”
|
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Not required = Dual wheel hub extension is not required for
tread width adjustment
|