A strong 175/80R13 boat-trailer tire choice matches your trailer’s required load rating and wheel fitment, with a pre-mounted assembly if you want to replace tires and wheels together. The eCustomRim radial assembly leads this selection with two Load Range C tires rated for 1,360 pounds each and 13-inch wheels with a 5-on-4.5-inch bolt pattern. Other options range from bias-ply wheel packages to tire-only pairs and higher-load radial sets.
Before choosing, check your trailer’s existing tire requirements, hub bolt pattern, and clearance; matching the size printed in a listing alone is not enough to confirm fit. This guide compares all ten products by their supplied specifications and distinguishes complete wheel assemblies from tires that require compatible wheels.
The eCustomRim Radial Assembly is the leading choice because it combines two ST175/80R13 radial tires with mounted 13-inch wheels, a 5-on-4.5-inch bolt pattern, and Load Range C capacity of 1,360 pounds per tire at 50 PSI. It suits buyers replacing a compatible pair of boat-trailer assemblies rather than tires alone. Confirm your trailer’s required load rating, wheel pattern, and clearance before ordering; the listed size does not establish compatibility with every trailer.
Our Top Picks
Best OverallTwo ST175/80R13 radial assemblies include 13-inch wheels, a 5-on-4.5-inch pattern, and Load Range C capacity of 1,360 pounds per tire.
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Best White-Wheel AssemblyThis boat-trailer-compatible pair includes pre-mounted ST175/80D13 tires, white 13-inch wheels, and Load Range C capacity of 1,360 pounds at 50 PSI.
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Best Four-Tire SetThe four-tire ST175/80R13 set offers radial construction, Load Range D, and a listed 1,610-pound load capacity, but does not include wheels.
View on Amazon- Best Radial Pair Suntek HD Trail Tire
- Highest Listed Load Capacity Transeagle ST II Tire
Compare These Boat Trailer Tire Options
| # | Product | Size | Rim Size | Weight | Buy |
|---|---|---|---|---|---|
| 1 | 1. eCustomRim Radial AssemblyBest Overall | 175/80R13 | 13 in | 54 lb | View on Amazon |
| 2 | 2. GarveeTech Bias AssemblyBest White-Wheel Assembly | ST175/80D13 | 13 in | 55.1 lb | View on Amazon |
| 3 | 3. Free Country Radial TireBest Four-Tire Set | 175/80R13 8PR | 13 in | 35 lb | View on Amazon |
| 4 | 4. Suntek HD Trail TireBest Radial Pair | 175/80R13 | 13 in | 32 lb | View on Amazon |
| 5 | 5. Transeagle ST II TireHighest Listed Load Capacity | 175/80R13 | 13 in | 38 lb | View on Amazon |
| 6 | 6. HORSESHOE ST-KING I TireRim-guard radial tire pair | ST 175/80R13 6PR | 13 in | — | View on Amazon |
| 7 | 7. eCustomRim Bias AssemblyBias-ply wheel-and-tire pair | 175/80D13 | 13 in | 54 lb | View on Amazon |
| 8 | 8. Garvee Bias Wheel AssemblyHeavy-load bias-ply assemblies | ST175/80D13 | 15 in | 57.3 lb | View on Amazon |
| 9 | 9. Roundrule ST Hikee TireSix-ply all-season replacement | 175/80R13 | 13 in | 17 lb | View on Amazon |
| 10 | 10. ROCKMAN Radial TireEight-ply radial tire pair | — | — | 35 lb | View on Amazon |
Detailed Reviews: Best Boat Trailer Tires 175 80R13

#1 · Best Overall
1. eCustomRim Radial Assembly
- Size: 175/80R13
- Rim Size: 13 in
- Weight: 54 lb
Best for: Radial tire-and-wheel replacement.
Why it ranks #1: Two ST175/80R13 radial assemblies include 13-inch wheels, a 5-on-4.5-inch pattern, and Load Range C capacity of 1,360 pounds per tire.
A radial ST175/80R13 tire arrives mounted on a white 13-inch wheel, so this two-piece eCustomRim set combines the tire and rim in one assembly. Each Load Range C tire supports up to 1,360 pounds at a maximum 50 PSI, making the stated capacity and inflation limit clear for trailer owners choosing replacements.
The 13×4.5-inch alloy-steel wheel has a five-lug, 4.5-inch bolt pattern and a 3.19-inch center bore, giving buyers concrete dimensions to compare with their existing trailer setup. Its radial tire measures 23.9 inches in overall diameter and is rated to 1,360 pounds per tire at 50 PSI. Because these are tire-and-wheel assemblies, the set supplies both components together; the stated fitment dimensions still need to match the trailer’s wheel requirements.
- Two radial ST175/80R13 tire-and-wheel assemblies
- Load Range C tire rated to 1,360 pounds each
- 13×4.5-inch wheel with five-lug, 4.5-inch pattern
- 3.19-inch center bore and 23.9-inch overall tire diameter
- The package is a two-assembly set, not a four-tire replacement set.
Skip it if you need four replacements at once; Free Country’s ST175/80R13 set supplies four tires, while this package contains two assemblies.
Choose this eCustomRim pair if you want radial tires supplied with 13-inch wheels and your trailer matches the five-lug, 4.5-inch pattern and 3.19-inch center bore. Each tire’s stated limit is 1,360 pounds at 50 PSI.
Full product details
| Brand | eCustomRim |
|---|---|
| Color | White |
| Compatible with Vehicle Type | Trailer |
| Included Components | User Guide |
| Item Weight | 54 pounds |
| Manufacturer | eCustomRim |
| Part Number | 57880-2 |
| Manufacturer Warranty Description | Six Years |
| Material | Alloy Steel |
| Rim Size | 13 inches |
| Size | 175/80R13 |
| Wheel Size | 13 inches |
Listed on Amazon as: eCustomrim 2-Pack Radial Trailer Tire Rim Assembly ST175/80R13 5 Lug White
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#2 · Best White-Wheel Assembly
2. GarveeTech Bias Assembly
- Size: ST175/80D13
- Rim Size: 13 in
- Weight: 55.1 lb
Best for: Pre-mounted boat-trailer pair.
Why it ranks #2: This boat-trailer-compatible pair includes pre-mounted ST175/80D13 tires, white 13-inch wheels, and Load Range C capacity of 1,360 pounds at 50 PSI.
GarveeTech supplies two pre-mounted ST175/80D13 bias-ply tires on white 13-inch spoke wheels, making this package a complete pair of tire-and-wheel assemblies. Each Load Range C, 6PR tire is rated for 1,360 pounds at 50 PSI, and the wheels use a five-lug, 4.5-inch pattern.
The pre-mounted assemblies include tires and wheels together, and the 13-inch white spoke wheels have a five-lug, 4.5-inch PCD for fitment comparison. The bias-ply tires use Load Range C, 6PR construction and are rated at 1,360 pounds maximum load at 50 PSI. Nylon cord layers and double steel belts are listed as construction features supporting towing stability. The package is specified for utility and boat trailers among other trailer types, but its bias-ply build is distinct from radial options.
- Two pre-mounted ST175/80D13 assemblies
- 13-inch white spoke wheels with five-lug, 4.5-inch PCD
- Load Range C, 6PR tires rated to 1,360 pounds at 50 PSI
- Nylon cord layers and double steel belts
- The tires are bias-ply rather than radial.
Skip it if you want radial tires; eCustomRim’s ST175/80R13 two-pack combines radial tires with 13-inch wheels.
Choose this GarveeTech set if you need two pre-mounted assemblies for a boat or utility trailer and the five-lug, 4.5-inch pattern matches. The listed tires are bias-ply ST175/80D13, not radial.
Full product details
| Brand | GARVEETECH |
|---|---|
| Compatible with Vehicle Type | Utility trailers, boat trailers, camper trailers, travel trailers, farm trailers, haulers |
| Included Components | 2 Trailer Tire Wheel Assembly |
| Item Weight | 55.1 pounds |
| Manufacturer | GarveeTech |
| Part Number | 5NHC_QaH |
| Manufacturer Warranty Description | no |
| Material | Carbon Steel |
| Rim Size | 13 inches |
| Size | ST175/80D13 |
| Wheel Size | 13 inches |
Listed on Amazon as: GarveeTech ST175/80D13 Trailer Tire and Wheel Assembly, 5 Lug, Set of 2
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#3 · Best Four-Tire Set
3. Free Country Radial Tire
- Size: 175/80R13 8PR
- Rim Size: 13 in
- Weight: 35 lb
Best for: Four-tire replacement set.
Why it ranks #3: The four-tire ST175/80R13 set offers radial construction, Load Range D, and a listed 1,610-pound load capacity, but does not include wheels.
Four ST175/80R13 trailer tires make the Free Country package a larger replacement set than the two-tire options in this roundup. The tires are specified as 8-ply, Load Range D, with a listed load capacity of 1,610 pounds, and the product is explicitly described as a trailer-tire replacement.
The four-tire quantity can serve buyers replacing a full set rather than sourcing two tires at a time. Its ST175/80R13 size and 13-inch rim specification provide the basic tire and rim dimensions to compare with the trailer’s existing setup. The 8-ply, Load Range D designation and 1,610-pound listed capacity distinguish its stated construction and load information. These are replacement tires, not listed wheel assemblies, so the existing compatible rims remain part of the installation plan.
- Set includes four trailer tires
- ST175/80R13 size with 13-inch rim specification
- 8-ply, Load Range D designation
- Listed load capacity of 1,610 pounds
- The package lists tires only, not mounted wheel assemblies.
Skip it if you want mounted wheels included; GARVEETECH’s ST175/80D13 set supplies two pre-mounted tire-and-wheel assemblies.
Choose this Free Country set if you need four ST175/80R13 replacement tires and already have suitable wheels. Its listing identifies a 13-inch rim size, but does not describe the package as mounted assemblies.
Full product details
| Brand | Free Country |
|---|---|
| Item Dimensions | 25 x 15 x 25 inches |
| Item Weight | 35 pounds |
| Load Capacity | 1610 pounds |
| Manufacturer | FREE COUNTRY |
| Part Number | ST175/80R13 |
| Model Number | D107 |
| Rim Size | 13 inches |
| Size | 175/80R13 8PR |
| Vehicle Tire ISO Metric Size Description | 175/80R13 |
| Additional Information | Important information |
Listed on Amazon as: FREE COUNTRY Set 4 Premium Trailer Tires ST175/80R13 8PR LR D w/Scuff Guard
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#4 · Best Radial Pair
4. Suntek HD Trail Tire
- Size: 175/80R13
- Rim Size: 13 in
- Weight: 32 lb
Best for: Higher-capacity tire-only pair.
Why it ranks #4: This pair of ST175/80R13 tires has 8-ply construction and a listed 1,609-pound load capacity; wheels are not included.
Suntek’s two HD Trail 2 ST175/80R13 tires list a 1,609-pound load capacity and an 8-ply, Load Range D designation, making those specifications central to this tire-only set. The product is identified as all-season, and its included components are tires rather than wheel assemblies.
The 175/80R13 size and 13-inch rim specification give buyers basic dimensions to compare with their current trailer wheels. Suntek lists 1,609 pounds of load capacity and an 8-ply, Load Range D description, while the all-season designation identifies its stated seasonal category. Because the package includes tires only, existing rims or separately sourced compatible wheels are needed for installation. This two-tire set is therefore a replacement option for owners who do not need wheels supplied with the tires.
- Two ST175/80R13 tires
- Listed load capacity of 1,609 pounds
- 8-ply, Load Range D designation
- All-season tire designation
- Tires only are included; no wheels are supplied.
Skip it if you need wheels with your tires; Garvee’s two-pack includes ST175/80D13 tires mounted on black 13-inch spoke wheels.
Suntek’s pair suits owners replacing two ST175/80R13 tires who can reuse suitable wheels. The listed 1,609-pound capacity and all-season designation are useful comparison points, but this package does not include rims.
Full product details
| Brand | Suntek |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 23 x 23 x 6 inches |
| Item Weight | 32 pounds |
| Load Capacity | 1609 pounds |
| Part Number | SK0005 |
| Model Number | SK0005 |
| Rim Size | 13 inches |
| Size | 175/80R13 |
| Vehicle Tire ISO Metric Size Description | 175/80R13 |
Listed on Amazon as: 2 x Suntek HD Trail 2 ST175/80R13 All Season D (8 Ply) Semi-Steel Tires
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#5 · Highest Listed Load Capacity
5. Transeagle ST II Tire
- Size: 175/80R13
- Rim Size: 13 in
- Weight: 38 lb
Best for: Higher-capacity 10-ply pair.
Why it ranks #5: The tire pair lists a 1,819-pound load capacity and E rating in ST175/80R13, making it the highest-capacity tire-only option here.
Transeagle’s two ST II tires list a 1,819-pound load capacity and 10-ply, Load Range E construction, setting this ST175/80R13 pair apart by its stated capacity and ply rating. The tires are designated all-season and are supplied without wheel assemblies.
The ST175/80R13 size and 13-inch rim specification provide the basic dimensions for checking the tires against an existing trailer setup. Transeagle lists a 1,819-pound load capacity alongside 10-ply, Load Range E construction, useful details for buyers comparing tire ratings. The all-season designation adds the stated seasonal category. As the included components are tires only, installation depends on compatible wheels being available separately or already on the trailer; the listing does not provide wheel assemblies.
- Two ST175/80R13 tires
- Listed load capacity of 1,819 pounds
- 10-ply, Load Range E designation
- All-season tire designation
- Tires only are included, so wheel assemblies are not supplied.
Skip it if you need pre-mounted wheel assemblies; GARVEETECH’s two-pack includes tires mounted on 13-inch white spoke wheels.
Transeagle’s pair fits buyers seeking two ST175/80R13, 10-ply, Load Range E tires with a listed capacity of 1,819 pounds. It is a tire-only package, so plan on compatible wheels separately.
Full product details
| Brand | Transeagle |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 23 x 23 x 6 inches |
| Item Weight | 38 pounds |
| Load Capacity | 1819 pounds |
| Manufacturer | Transeagle |
| Part Number | TSL14 |
| Model Number | TSL14 |
| Rim Size | 13 inches |
| Size | 175/80R13 |
| Vehicle Tire ISO Metric Size Description | 175/80R13 |
Listed on Amazon as: 2 x Transeagle ST II ST175/80R13 101/97N All Season E (10 Ply) Tires
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#6
6. HORSESHOE ST-KING I Tire
- Size: ST 175/80R13 6PR
- Rim Size: 13 in
Best for: Rim-guard radial tire pair.
Why it ranks #6: This two-tire ST175/80R13 radial set lists 6-ply construction, a two-year manufacturer warranty, and a 615-kilogram load capacity.
A featured rim-guard wall distinguishes the HORSESHOE LIPIZZAN ST KING I radial trailer tires, adding a stated tire-side feature to a 175/80R13, six-ply package. The listing identifies these as two tires only, with no wheel assembly included, and gives a load capacity of 615 kilograms.
The ST175/80R13 size and 13-inch rim specification identify the tire format for buyers sourcing replacements, while the six-ply, steel-belted radial construction is stated in the product title. The featured rim-guard wall provides another specific tire characteristic, and the title lists all-terrain, all-season use plus an 81 mph speed figure. Since the included components are tires only, buyers arranging a changeover need to source compatible wheels separately; the listing does not provide a wheel bolt pattern.
- Two ST175/80R13 radial tires
- Six-ply, steel-belted construction stated in title
- Featured rim-guard wall
- All-terrain, all-season designation and 81 mph figure
- Tires only are included; wheels are not part of the package.
Skip it if you need wheels included with the tires; eCustomRim’s radial tire-and-wheel assembly includes 13-inch rims.
Consider this HORSESHOE pair if you want ST175/80R13 radial tires with a featured rim-guard wall and already have compatible wheels. The listing supplies tires only, so it is not a complete wheel-and-tire assembly.
Full product details
| Brand | HORSESHOE |
|---|---|
| Included Components | Tires Only |
| Load Capacity | 615 kg |
| Manufacturer | HORSESHOE TIRE GROUP |
| Part Number | ST-KING I |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Model Number | LIPIZZAN ST KING I |
| Rim Size | 13 inches |
| Size | ST 175/80R13 6PR |
| Vehicle Tire ISO Metric Size Description | 175/80R13 (ST) |

#7
7. eCustomRim Bias Assembly
- Size: 175/80D13
- Rim Size: 13 in
- Weight: 54 lb
Best for: Bias-ply wheel-and-tire pair.
Why it ranks #7: Two pre-mounted ST175/80D13 Load Range C assemblies include valve stems and 13-inch wheels with a 5-on-4.5-inch bolt pattern.
Pre-mounted ST175/80D13 bias-ply tires and valve stems come together in this two-assembly eCustomRim package, providing a combined tire-and-wheel replacement option. Each Load Range C tire is rated for up to 1,360 pounds at 50 PSI, while the 13×4.5-inch wheel uses a five-lug, 4.5-inch bolt pattern.
The package’s two pre-mounted assemblies include valve stems, which means the tire and wheel are supplied together for installation rather than as separate tire-only components. Each black alloy-steel wheel has a 3.19-inch center bore and a five-lug, 4.5-inch pattern, dimensions buyers can compare with their trailer. The bias-ply tire has a 24.4-inch overall diameter and carries a 1,360-pound maximum load rating at 50 PSI, useful figures when checking the intended setup.
- Two pre-mounted ST175/80D13 bias-ply assemblies
- Valve stems included
- Load Range C rating of 1,360 pounds per tire
- 13×4.5-inch wheels with five-lug, 4.5-inch pattern
- The bias-ply construction differs from radial tires, which may not suit buyers seeking radial replacements.
Skip it if you specifically need radial construction; eCustomRim’s ST175/80R13 two-pack supplies radial tires with wheels instead.
This pair suits a trailer owner replacing two bias-ply tire-and-wheel assemblies who wants valve stems included. Check the 13×4.5-inch wheel, five-lug pattern, and 3.19-inch center bore against the trailer before choosing.
Full product details
| Brand | eCustomRim |
|---|---|
| Color | Black |
| Compatible with Vehicle Type | Trailer |
| Included Components | User Guide |
| Item Weight | 54 pounds |
| Manufacturer | eCustomRim |
| Part Number | 63196-2 |
| Manufacturer Warranty Description | Two Years |
| Material | Alloy Steel |
| Rim Size | 13 inches |
| Size | 175/80D13 |
| Wheel Size | 13 inches |
Listed on Amazon as: eCustomrim 2-Pack Trailer Tire Rim Assembly ST175/80D13 Load Range C
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#8
8. Garvee Bias Wheel Assembly
- Size: ST175/80D13
- Rim Size: 15 in
- Weight: 57.3 lb
Best for: Heavy-load bias-ply assemblies.
Why it ranks #8: The pair includes ST175/80D13 Load Range C tires rated for 1,360 pounds at 50 PSI and black 13-by-4.5-inch steel wheels.
Garvee pairs ST175/80D13 six-ply, Load Range C tires with black 13-inch steel spoke wheels, supplying two tire-and-wheel assemblies for trailer replacement. Each tire is rated for up to 1,360 pounds at 50 PSI, and the wheel’s five-lug, 4.5-inch pattern gives a concrete fitment specification to check.
The six-ply bias-ply tires carry a stated 1,360-pound maximum load at 50 PSI, making the load and inflation limits clear for owners comparing trailer replacements. Each black steel wheel measures 13×4.5 inches and uses a five-lug, 4.5-inch pattern, so those dimensions can guide a fitment check. With two tires and rims included, the package supplies the paired assemblies together; the listing identifies utility, boat, and family camping trailers as intended applications.
- Two ST175/80D13 tire-and-wheel assemblies
- Six-ply, Load Range C construction
- Rated up to 1,360 pounds at 50 PSI per tire
- Black 13×4.5-inch steel wheels with five-lug, 4.5-inch pattern
- The listing specifies bias-ply tires, not radial construction.
Skip it if you require radial tires; HORSESHOE LIPIZZAN ST KING I is listed as a radial ST175/80R13 tire pair.
This Garvee set fits buyers seeking two bias-ply tire-and-wheel assemblies for a utility, boat, or camping trailer. Verify the five-lug, 4.5-inch pattern and 13×4.5-inch wheel dimensions against the trailer.
Full product details
| Brand | Garvee |
|---|---|
| Compatible with Vehicle Type | Trailer |
| Included Components | 2x Trail Tires with Rims |
| Item Weight | 57.3 pounds |
| Manufacturer | Garvee |
| Part Number | ST175PAE_33DYGYUUSTARzCA |
| Manufacturer Warranty Description | 30 days manufacturer |
| Material | Steel |
| Model Number | 5 lug |
| Rim Size | 15 inches |
| Size | ST175/80D13 |
| Wheel Size | 13 inches |
Listed on Amazon as: Garvee 2-Pack ST175/80D13 Trailer Tires with Black 13" Spoke Wheel
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#9
9. Roundrule ST Hikee Tire
- Size: 175/80R13
- Rim Size: 13 in
- Weight: 17 lb
Best for: Six-ply all-season replacement.
Why it ranks #9: This ST175/80R13 tire has a listed 1,356-pound load capacity and 6-ply construction, but the supplied listing specifies one tire.
Roundrule’s ST Hikee tire combines an ST175/80R13 size with a six-ply, Load Range C all-season designation, giving buyers a clearly specified tire-only replacement. Its listed load capacity is 1,356 pounds, and the package includes a tire rather than a wheel assembly.
The 175/80R13 size and 13-inch rim specification let buyers compare the tire with their current trailer setup, while the six-ply, Load Range C description identifies its stated construction. Roundrule lists a 1,356-pound load capacity and all-season use, which help frame the choice around the tire’s published capacity and seasonal category. Since the included component is a tire only, a compatible wheel must already be available or sourced separately for installation.
- ST175/80R13 special-trailer tire
- Six-ply, Load Range C designation
- All-season designation
- Listed load capacity of 1,356 pounds
- The package includes a tire only, not a wheel assembly.
Skip it if you need a higher listed load capacity; Transeagle ST II specifies 1,819 pounds per tire, versus Roundrule’s 1,356 pounds.
This Roundrule tire suits a buyer replacing an ST175/80R13 tire who wants a six-ply, all-season, Load Range C option. It is tire-only, and its listed capacity is 1,356 pounds.
Full product details
| Brand | Roundrule |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 23 x 23 x 6 inches |
| Item Weight | 17 pounds |
| Load Capacity | 1356 pounds |
| Manufacturer | Roundrule |
| Part Number | P66001-R |
| Model Number | P66001-R |
| Rim Size | 13 inches |
| Size | 175/80R13 |
| Vehicle Tire ISO Metric Size Description | 175/80R13 |
Listed on Amazon as: Roundrule ST Hikee ST175/80R13 91/87L All Season C (6 Ply) Semi-Steel Tire
View on AmazonWhy it ranks #10: The title identifies a set of two ST175/80R13 8-ply Load Range D radial tires, but the supplied specifications give few further fitment details.
ROCKMAN lists a two-tire ST175/80R13 set with 8-ply, Load Range D radial construction, giving buyers a higher-ply radial option in this size. The title also supplies a 97M designation, while the available specifications identify the tires as ROCKMAN’s All Trail model.
The ST175/80R13 size identifies the tire format, and the title’s radial, 8-ply, Load Range D details help distinguish this set from bias-ply and lower-ply options. The 97M designation is also stated in the title for buyers comparing tire markings. The listing names a set of two tires but does not specify wheels as included, so buyers planning installation should account for suitable existing or separately sourced rims; no load-capacity figure is supplied in the available specifications.
- Set of two ST175/80R13 tires
- Radial construction stated in title
- 8-ply, Load Range D designation
- 97M designation stated in title
- The supplied specifications do not state a load-capacity figure.
Skip it if you need a stated load capacity before choosing; Transeagle ST II lists a capacity of 1,819 pounds per tire.
This ROCKMAN set suits buyers seeking two 8-ply, Load Range D radial tires in ST175/80R13. The supplied details do not give a load-capacity figure or identify wheel assemblies, so those requirements need separate consideration.
Full product details
| Brand | ROCKMAN |
|---|---|
| Item Weight | 35 pounds |
| Manufacturer | ROCKMAN |
| Part Number | ST175/80R13 |
| Model | All Trail |
Listed on Amazon as: ROCKMAN Trailer Tire ST175/80R13 8-Ply Load Range D 97M Radial 11169, Set2
View on AmazonAvoid wheel-fitment and package-count surprises
A tire’s 175/80R13 size does not confirm that its wheel will fit your trailer hub. The eCustomRim Radial Assembly gives a 5-on-4.5-inch bolt pattern and 3.19-inch center bore, while the GarveeTech Bias Assembly lists a 5-lug, 4.5-inch PCD. Compare those details with the trailer’s existing wheel before ordering a tire-and-wheel package.
Also check exactly what the package contains: some listings are tire-only, while others are mounted assemblies. The Roundrule listing identifies a single tire; several other titles or specifications identify pairs, and Free Country lists a set of four.
One listing detail deserves extra scrutiny: Garvee’s title describes a 13-inch spoke wheel, while its specifications state a 15-inch rim size. Verify that discrepancy with the seller before treating it as a fitment match. A wrong pattern, center bore, or wheel diameter can make an otherwise correctly sized tire unusable.
Radial versus bias-ply for a boat trailer
These listings offer both radial and bias-ply construction, but the supplied facts do not establish that one type is universally better for boat trailers. Radial examples include the eCustomRim Radial Assembly and tire-only options such as the Suntek HD Trail Tire; bias-ply wheel packages include the GarveeTech Bias Assembly and eCustomRim Bias Assembly. Consider what is already installed and follow your trailer or tire maker’s requirements rather than mixing types based only on a product title.
Construction also does not replace load and fitment checks: the eCustomRim radial and bias assemblies both list Load Range C and 1,360 pounds per tire, while the Free Country radial set lists Load Range D and 1,610 pounds. If you need wheels as well as tires, compare complete assemblies; if your wheels are serviceable, a tire-only set may be the more relevant format.
Confirm load capacity and pressure requirements from the tire markings and trailer guidance.
How to Choose 175/80R13 Boat Trailer Tires
Load rating and capacity
Choose a tire whose load capacity meets or exceeds your trailer’s requirements, using the tire and trailer guidance rather than assuming the highest number is always suitable. Several Load Range C options, including the eCustomRim Radial Assembly and GarveeTech Bias Assembly, list 1,360 pounds per tire at 50 PSI. The Roundrule ST Hikee Tire lists 1,356 pounds; the Suntek HD Trail Tire lists 1,609 pounds, and Free Country lists 1,610 pounds with Load Range D.
Transeagle lists 1,819 pounds and E rating. Buyers whose trailer requirements call for a higher capacity should investigate the higher-rated options, while those needing a compatible C-rated assembly can compare the mounted packages.
Verify the rating against the trailer’s required capacity and tire markings.
Tires alone or mounted wheels
Decide whether you need replacement tires only or complete wheel assemblies before comparing listings. The eCustomRim Radial Assembly, eCustomRim Bias Assembly, Garvee Bias Wheel Assembly, and GarveeTech Bias Assembly include wheels; the GarveeTech pair specifies white 13-inch wheels with a 5-lug, 4.5-inch pattern. Tire-only choices include Roundrule, Suntek, Transeagle, and Free Country, so they require wheels that are compatible with the tire and trailer.
Package quantity varies too: Free Country lists four tires, while several products identify two. A buyer replacing wheels and tires together may prefer a mounted assembly after confirming hub fitment.
Someone keeping serviceable wheels may prefer tire-only products, but should verify mounting availability and exact package quantity before ordering.
Construction and tire type
Match radial or bias-ply construction to your trailer’s requirements and current setup, since these products offer both types. The eCustomRim Radial Assembly and Suntek HD Trail Tire are radial examples; the eCustomRim Bias Assembly and GarveeTech Bias Assembly are bias-ply options. The listings also span 6-ply and 8-ply products: Roundrule lists 6-ply, while Suntek and ROCKMAN identify 8-ply construction.
These labels should be considered alongside the specified load rating, not used alone to infer suitability. Buyers seeking a mounted radial pair can start with eCustomRim Radial Assembly; buyers seeking mounted bias-ply wheels can compare the bias assemblies.
If replacing only tires, check that the chosen type and rating are appropriate for your trailer rather than relying on the size designation alone.
Which 175/80R13 tire should I choose?
For a compatible boat trailer needing two mounted radial wheels, choose the eCustomRim Radial Assembly: it specifies Load Range C, 1,360 pounds per tire, and a 5-on-4.5-inch pattern. If you want mounted bias-ply wheels, the GarveeTech Bias Assembly lists the same per-tire capacity and white 13-inch wheels; confirm its pattern suits your hub. For four radial replacement tires, consider Free Country Radial Tire, which lists Load Range D and 1,610 pounds but includes no wheels.
Suntek HD Trail Tire offers a two-tire 8-ply radial set with a 1,609-pound listed capacity. If your priority is a higher listed capacity, compare Transeagle ST II Tire, while checking its rating against your trailer’s requirements.
Verify capacity, wheel fit, and package count before ordering.
Related Buying Guides
Frequently Asked Questions
How can I confirm that a 5-on-4.5-inch wheel fits my trailer hub?
Check the trailer or hub documentation for its bolt pattern, or measure the hub: count the five studs and measure the bolt circle using the correct method for an odd-numbered lug pattern. Compare that measurement with the wheel listing. Also verify wheel size, offset or backspacing requirements, and clearance; matching the bolt pattern alone does not confirm full fit.
Should I choose radial or bias-ply tires for my boat trailer?
Choose based on your trailer’s requirements and how you use it. Radial tires generally flex differently and can run cooler on longer highway trips, while bias-ply tires have a stiffer construction that may suit some shorter or rougher-use applications. Check the trailer manufacturer’s guidance and do not mix tire types unless that guidance permits it.
How do I determine the correct tire load rating for my trailer?
Use the trailer’s required tire capacity, not a guess based on tire size. Check its certification label or manual, account for the trailer’s loaded weight and axle configuration, and make sure the tires’ combined capacity meets the requirement. Confirm the listed capacity applies at the stated inflation pressure, and never exceed the trailer or wheel limits.
Does a tire listing include wheels?
Check the product title and package details before ordering. Some listings describe tire-and-wheel assemblies, while others provide tires only; a stated tire size does not establish that a wheel is included. The eCustomRim Radial Assembly is described as two tires with mounted wheels, while the Free Country listing is a four-tire set without wheels.
Why should I check trailer tire clearance?
Check clearance because a tire that matches the specified size may still contact the fender, frame, or other parts as the suspension moves or the trailer turns. Compare the proposed assembly with the trailer’s available space, including wheel fit and tire dimensions. If uncertain, consult the trailer documentation or a qualified trailer service professional.
Final Words
For a compatible trailer needing two mounted radial assemblies, the eCustomRim Radial Assembly is the leading choice: it lists Load Range C, 1,360 pounds per tire, and a 5-on-4.5-inch pattern. Choose the GarveeTech assembly if mounted bias-ply wheels suit your needs, or consider Free Country for four radial tires without wheels. Before ordering, verify load requirements, hub pattern, package contents, inflation guidance, and clearance.



