Differences Between 5.30R12 Radial Trailer Tire # TT53012C & ST145/R12 Radial Trailer Tire # AM10130

Question:

What is the difference between 145/80-12 and 5.30-12 tire size?

asked by: Gene

Expert Reply:

The Taskmaster 5.30R12 Radial Trailer Tire # TT53012C and Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10130 are very close in size. I have listed all the dimensions and specs below for each tire.

Taskmaster 5.30R12 Radial Trailer Tire # TT53012C
Fits: 12" x 4" rims
Section width: 5.39"
Outer diameter: 21.57"
Maximum speed: 81 mph
Load range: C
Ply rating: 6
Maximum load: 1,050 lbs at 80 psi

Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10130
Fits: 12" x 4" rims
Section width: 5.7"
Outer diameter : 21.3"
Maximum speed: 81 mph
Load range: D
Ply rating: 8
Maximum load: 1,220 lbs at 65 psi