Comparing Trailer Wheel and Tires in Size ST145/R12
Question:
My Carry On 5x8 utility trailer came with 4.8x12 bias tires. It’s time to replace them and I’d like to upgrade to radial tires. It appears that ST145/R12 and 5.30R12 are both suitable replacements for my 5 on 4 1/2, 12”x4” rims. I looked at your tire/rim combos of AM31202 and but can't find one for the ST145/R12 size. Other than slight differences in load capacities E vs D are there additional performance differences to consider? Which of the two is better? I’m looking for the best all around performing tire regarding load, hwy speeds, wear, etc. Do you suggest other options? Thank you!
asked by: Roger
Helpful Expert Reply:
The Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140 and the Aluminum Lynx Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - Silver # LH45FR is the wheel and tire that you want. There is very little difference between the two except for Load Range. I would choose the higher load range. These do not come mounted, so you can have them mounted at a local shop when they arrive.

Products Referenced in This Question
Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E
- Trailer Tires and Wheels
- Tire Only
- Radial Tire
- Load Range E
- 145/80-12
- 12 Inch
- M - 81 mph
- Kenda
more information >
Product Page this Question was Asked From
Aluminum Lynx Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - Silver
- Trailer Tires and Wheels
- Wheel Only
- 12 Inch
- 5 on 4-1/2 Inch
- Aluminum Wheels
- Lionshead
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Review of Kenda Trailer Tires and Wheels - Tire with Wheel - KE96EV
- Shop: Karrier S-Trail Radial Trailer Tire with 12" Aluminum AM01 Wheel - 5 on 4-1/2 - Load Range E
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E
- Shop: Karrier S-Trail Radial Trailer Tire with 12" Aluminum AM02 Wheel - 5 on 4-1/2 - Load Range D
- Search Results: trailer tires and wheels
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 5 on 4-1/2 - LR D
- Shop: Rambler ST145/R12 Radial Trailer Tire - Load Range D
- Video: Review of the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 4 on 4 - LR D
- Search Results: 145r12c
- Shop: Kenda 4.80-12 Bias Trailer Tire with 12" White Wheel - 5 on 4-1/2 - Load Range C
- Q&A: Can 4.80-12 Tire be Replaced with ST145/R12 Tire Using the Same Wheel
- Q&A: Can a 5.30-12 Size Tire be Replaced with a ST145/R12 Size Tire
- Shop: Trailer Hitch
- Video: Review of Kenda Trailer Tires and Wheels - Radial Tire with Wheel - AM31199DX
- Article: Boat Trailer Guides: Which are the Best?
- Article: How to Launch a Boat from a Trailer (And Load it Back Up)
- Search Results: 12 inch rim
- Search Results: st145/r12
- Video: Mount: Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit on a 2022 BMW X5
- Q&A: Trailer Tire that is Wider than 4.80-12
- Article: Transmission Cooler
- Search Results: 48 x12
- Article: Brake Controller Installation: Starting from Scratch
- Video: Complete Breakdown of the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire
- Article: Trailer Tire Sizing
- Q&A: Radial Trailer Tire to Replace Bias Ply 4.80-12 Trailer Tires
- Q&A: Will Upgrading to ST145/R12 Load Range E Tires Help Prevent Blowouts?
- Q&A: Which is Better for Highway Use 4.80-12 or 5.30-12 Trailer TIres
- Q&A: How Much Taller is a ST145/R12 Radial Tire Than a 4.80 x 12 Tire?
Paul
4/30/2024
What is the difference between a ST145/70R12 Radial and a standard ST145/R12?