Recommendation to Replace ST145/70R12 Tires
Question:
Hello, I have a 6 year old trailer and I want to replace both tires for preventative maintenance. The trailer has ST145/70 R12 tires on it and I have a new never used spare with that same dimension. I am trying to find another exact same tire so I just use my spare and another new tire but finding it extremely difficult to find this tire Carlisle. Can I use a 5.30x12 tire on one side of the trailer and my ST145/70 R12 on the other? Worried about the size of tires but also the tread design is different. Or should I just keep that spare tire and buy two new 5.30X12 tires? Appreciate your help with this.
asked by: Eric H
Expert Reply:
You definitely don't want to use different sized tires because it will cause your trailer to sit uneven and will cause uneven wear both on the tires as well as your trailer suspension and who knows what else. I really wouldn't advise using that as a spare unless you are only going to be traveling a very short distance for repairs (like within a mile).
I personally recommend going with the tire size 145/80-12 because these come in radial which are much better for highway use than bias tires are. The Kenda Karrier S-Trail # AM31199DX is a great option that has a load range D (1,220 lbs at 65 psi), a max speed rating of 65 mph, and comes with a white spoke wheel with a 5 on 4-1/2" bolt pattern.
Product Page this Question was Asked From
Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 5 on 4-1/2 - LR D
- Trailer Tires and Wheels
- Tire with Wheel
- Radial Tire
- Load Range D
- 145/80-12
- 12 Inch
- M - 81 mph
- 5 on 4-1/2 Inch
- Steel Wheels - Powder Coat
- Kenda
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 5 on 4-1/2 - LR D
- Shop: Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D
- Video: Review of Kenda Trailer Tires and Wheels - Tire with Wheel - AM31199DX
- Shop: Karrier ST175/80R13 Radial Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range C
- Video: Kenda Tires and Wheels - Tire with Wheel - AM31994 Review
- Article: Most Popular Wheel Bearings
- Shop: Taskmaster 4.80R12 Radial Trailer Tire - Load Range C
- Q&A: Upgrading the Tire and Wheel on a Harbor Freight Trailer
- Q&A: Can Different Size Tires Be Used On Trailer At The Same Time
- Q&A: Can I Put Larger Wheels and Tires On My Harbor Freight Trailer By Replacing the Hubs?
- Q&A: Tire and Wheel Combo for Harbor Freight Trailer with ST175/80-13 Tires with 5 on 4-1/2 Bolt Pattern
- Shop: Spare Tire Cover
- Search Results: spare tire covers
- Video: Kenda Tires and Wheels - Tire with Wheel - AM31951 Review
- Shop: Kenda Loadstar 5.30-12 Bias Trailer Tire with 12" White Wheel - 5 on 4-1/2 - Load Range C
- Shop: Adco Spare Tire Cover for 24" Diameter Tires - Black - Qty 1
- Shop: Roadmaster High Low Adapter for Tow Bars - 2-1/2" Hitches - 4" Rise/Drop - 10K GTW
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Q&A: What is the Difference Between Load Range B and C Trailer Tires
- Q&A: How Much Taller is a ST145/R12 Radial Tire Than a 4.80 x 12 Tire?
- Shop: Roof Rack
- Search Results: 5.30 x 12 trailer tire
- Search Results: st145r12 radial trailer tire
- Search Results: 2000 lb axle bearing kit
- Search Results: motorcycle trailer rails
- Search Results: 145 r12 tire
- Search Results: 25580
- Article: Trailer Tire Sizing
- Video: Choosing the Right Trailer Wiring
on Trailer Tires and Wheels
