New Tire Designations

The previous designations for tire width are being increasingly replaced by new ones. There is not enough space in any of the tables to show all the old designations and their replacements.

Previous designation New designation
12.4-24 320/85-24
13.6-24 340/85-24
14.9-24 380/85-24
16.9-24 420/85-24
12.4-28 320/85-28
13.6-28 340/85-28
14.9-28 380/85-28
16.9-30 420/85-30
16.9-34 420/85-34
18.4-34 460/85-34
16.9-38 420/85-38
18.4-38 460/85-38

 

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