The best 175/80R13 trailer tire and rim depends on your trailer’s required tire construction, load capacity, and wheel fitment. For a ready-to-install two-pack with a 5-on-4.5-inch bolt pattern, the eCustomRim radial assembly is a strong choice for buyers seeking radial tires, while its bias-ply assembly suits buyers who need that construction. Garvee offers a two-pack of bias-ply tires with black wheels. The Free Country option lists an 8-ply rating but provides fewer fitment details, so confirm specifications before buying.
| Product | Construction | Notable details |
|---|---|---|
| eCustomRim ST175/80R13 | Radial | Two-pack; 5-on-4.5-inch pattern; 1,360-pound maximum load per tire |
| eCustomRim ST175/80D13 | Bias ply | Two-pack; 5-on-4.5-inch pattern; 1,360-pound maximum load per tire |
| Garvee ST175/80D13 | Bias ply | Two-pack with black steel wheels |
| Free Country ST175/80R13 | Radial, as listed | 8-ply, Load Range D in product name |
| eCustomRim B78-13 | Bias ply | Two-pack; 5-on-4.5-inch pattern |
eCustomRim Radial ST175/80R13 Assembly
Best for: Trailer owners who want a two-pack of radial tires mounted on wheels with a 5-on-4.5-inch bolt pattern. This assembly is a relevant pick because its listed ST175/80R13 size matches the requested tire size and its rim details are specified.
Each Load Range C tire is rated for up to 1,360 pounds at 50 PSI. The 13-by-4.5-inch rim has a 3.19-inch center bore, and the listed overall tire diameter is 23.9 inches. The tire, wheel, and valve stem are described as DOT-approved. The listing also states a six-year manufacturer’s warranty with roadside assistance.
Consideration: Confirm that your trailer calls for radial tires and that the load rating and wheel measurements meet its requirements. A 5-lug count alone does not establish fit; the bolt pattern matters too.
eCustomRim Bias-Ply ST175/80D13 Two-Pack
Best for: Buyers who need bias-ply tires and want two tire-and-wheel assemblies together. The product lists a 5-on-4.5-inch pattern, making it a candidate for trailers with that exact wheel specification.
These Load Range C tires have a stated maximum load of 1,360 pounds each at 50 PSI and an overall diameter of 24.4 inches. The 13-by-4.5-inch rims have a 3.19-inch center bore. The listing describes the tire, wheel, and valve stem as DOT-approved and includes a two-year manufacturer’s warranty with roadside assistance.
Consideration: The “D” in ST175/80D13 identifies the listed bias-ply size, not the radial size above. Choose this option only if bias-ply construction and the larger stated diameter suit your trailer’s specifications.
Garvee ST175/80D13 Black Wheel Set
Best for: Buyers looking for a two-pack of bias-ply tires with black steel wheels. Garvee lists 13-by-4.5-inch rims and a 5-on-4.5-inch bolt pattern, plus fitment use for utility, boat, and camping trailers.
The tires have 6-ply construction and Load Range C, with a stated maximum load of 1,360 pounds at 50 PSI. Garvee describes the bias-ply nylon cords as arranged in a crisscross pattern, with flexible sidewalls intended for stable use on uneven terrain. This is a practical alternative to the eCustomRim bias-ply option if black wheels are preferred.
Consideration: The listed features do not provide a center-bore measurement or tire overall diameter. Verify those dimensions and your trailer’s load requirements before choosing this set.
Free Country 8-Ply Trailer Tire And Wheel
Best for: Buyers comparing an option identified in its name as ST175/80R13, 8-ply, and Load Range D. The listed features highlight a full nylon cap-ply overlay across the tread, a scuff-guard ring on the tire wall, and 7 mm tread depth.
Those features may matter to shoppers prioritizing the described tread reinforcement and sidewall/rim protection. Compared with the Load Range C choices above, the product name identifies this as Load Range D. However, the supplied product details do not state its maximum load, inflation pressure, wheel dimensions, or 5-lug bolt pattern.
Consideration: Do not assume it fits a 5-on-4.5-inch hub from the title alone. Confirm the exact rim pattern, center bore, and load specifications before ordering.
eCustomRim B78-13 Bias-Ply Assembly
Best for: Buyers whose trailer documentation calls for the B78-13 designation or a compatible ST175/80D13 bias-ply tire. This two-pack lists the same key fitment measurements as the other eCustomRim bias-ply assembly: 13-by-4.5-inch rims, a 3.19-inch center bore, and a 5-on-4.5-inch bolt pattern.
The Load Range C tires are rated for up to 1,360 pounds each at 50 PSI, with a stated 24.4-inch overall diameter. The listing describes the assembly as including the tire, wheel, and valve stem.
Consideration: The provided features do not specify a warranty, unlike the other eCustomRim listings. Check the size designation on your current tires and trailer requirements before selecting it.
Buying Guide: How To Choose A 175/80R13 Tire And Rim
Does a five-lug wheel fit my trailer?
Check the full bolt pattern, not just the lug count. The eCustomRim and Garvee options above list a 5-on-4.5-inch pattern. Also compare the center bore, rim width, and any other wheel measurements your trailer requires. The Free Country details supplied here do not confirm its bolt pattern.
Should I choose radial or bias ply?
Use the construction specified for your trailer or replacement setup. The product names use “R” for radial and “D” for bias ply in the listed sizes. Do not treat these constructions as interchangeable without checking the trailer manufacturer’s guidance and tire requirements.
How much load capacity do I need?
Compare the tire’s load rating with the trailer’s loaded weight and the required capacity per tire. The listed Load Range C options state a maximum of 1,360 pounds per tire at 50 PSI. Do not exceed the applicable tire, wheel, or trailer limits, and follow the pressure specified for the tire and load.
What should I verify before ordering?
- Exact tire size and construction, including the R or D designation.
- Five-lug bolt pattern, center bore, and rim dimensions.
- Load range, maximum load, and required inflation pressure.
- Whether the listing is for a two-pack or another quantity.
- Whether the assembly includes the wheel and valve stem.
Frequently Asked Questions
What does 175/80R13 mean?
It identifies a tire size with a 175 mm nominal section width, an 80 aspect ratio, radial construction indicated by “R,” and a 13-inch rim diameter.
Is ST175/80D13 the same as ST175/80R13?
No. In these listings, “D” identifies bias-ply construction, while “R” identifies radial construction. Check which type your trailer requires.
Are all five-lug trailer wheels interchangeable?
No. The bolt-circle measurement, center bore, rim dimensions, and load capacity must also match the trailer’s requirements.
Can I use a Load Range D tire instead of Load Range C?
Not based on load range alone. Verify the tire’s complete specifications and confirm that its size, fitment, pressure, and capacity suit the trailer.