Is a 145/80-12 Tire the Same Size as a 5.30-12 Sized Tire

Question:

Is this tire the same as a 5x30x12?

asked by: Dawn T

Expert Reply:

The Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10130 is similar in size to the 5.30-12 size tire like the Taskmaster 5.30R12 Radial Trailer Tire # TT53012C but they are slightly different sizes.

The 145/R12 (also known as 145/80-12) has a section width of 5.7" and an outer diameter of 21.3" while the 5.30-12 size has a section width of 5.39" and an outer diameter of 21.57". You could easily interchange these tire sizes without the fear of clearance needs changing. Just note that you need to make sure you are using the same size and load range tires for all axles of your trailer to ensure safe and long-lasting operation.

expert reply by: Jon G