A strong trailer ST tire should match your trailer’s required size and load rating, with construction and included components suited to how you tow. The Free Country Grand Ride set is a compelling starting point for buyers seeking four steel-belted radial tires in ST225/75R15, with 10-ply rating, a listed 2,830-pound capacity per tire, and sidewall scuff protection. This lineup also includes 14-ply and 12-ply choices, smaller 14- and 15-inch fitments, bias tires, and tire-and-rim assemblies.
Those differences matter: a higher ply rating or a rim included in the box does not make a tire compatible with every trailer. Check the trailer placard or manual, wheel fitment, and axle requirements before choosing.
The Free Country Grand Ride ST225/75R15 10-ply set is the best overall choice here because it combines four steel-belted radial trailer tires, a listed 2,830-pound load capacity per tire, and a scuff guard for added sidewall and rim protection. It suits buyers whose trailer calls for this size and rating. Confirm the required tire size and load capacity against the trailer’s documentation, and remember that rims are not listed as included.
Our Top Picks
Best OverallThe set of four steel-belted radials pairs ST225/75R15 sizing with a 10-ply rating, 2,830-pound listed capacity, and protective scuff guard.
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Best Nylon OverlayThis four-tire ST205/75R15 set has a 10-ply rating, 2,400-pound capacity, full nylon cap-ply overlay, and scuff guard.
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Best All-Season DetailThe ST205/75R15 radial is Load Range E with a listed 2,400-pound capacity; supplied facts also describe its highway-terrain, all-season design.
View on Amazon- Highest Ply Rating Transeagle ST All Steel
- Best Rim Assembly eCustomRim ST205/75D15
Compare trailer tire sizes, construction, and fitment
| # | Product | Size | Rim Size | Load Capacity | Weight | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. Free Country Grand RideBest Overall | 225/75R15 10PR | 15 in | 2830 lb | 28.8 lb | View on Amazon |
| 2 | 2. Free Country HDBest Nylon Overlay | Set of 4 | 15 in | 2400 lb | 49.2 lb | View on Amazon |
| 3 | 3. NAMA NM616Best All-Season Detail | ST205 75R15 | 15 in | 2400 lb | — | View on Amazon |
| 4 | 4. Transeagle ST All SteelHighest Ply Rating | 205/75R15 | 15 in | 2649 lb | 82 lb | View on Amazon |
| 5 | 5. Transeagle ST Radial IISingle radial tire replacement | 225/75R15 | 15 in | 2833 lb | 28 lb | View on Amazon |
| 6 | 6. Horseshoe ST-King IIHeavy-load radial replacement | ST 225/75R15 12PR | 15 in | 1400 kg | — | View on Amazon |
| 7 | 7. Free Country ST205/75R14Scuff-guard 14-inch radials | 205/75R14 8PR | 14 in | 2040 lb | 45.6 lb | View on Amazon |
| 8 | 8. eCustomRim ST205/75D15Best Rim Assembly | Set of 2 | 15 in | — | 72 lb | View on Amazon |
| 9 | 9. Garvee ST205/75D14Rim-included utility trailer pair | ST205/75D14 | 14 in | — | 70.6 lb | View on Amazon |
| 10 | 10. WANDA ST205/75D15Bias-ply two-tire replacement | 205/75D15 Pack of 2 | 15 in | 1.82E+3 lb | 39.2 lb | View on Amazon |
Detailed Reviews: Best St Tires For Trailers

#1 · Best Overall
1. Free Country Grand Ride
- Size: 225/75R15 10PR
- Rim Size: 15 in
- Load Capacity: 2830 lb
- Weight: 28.8 lb
Best for: Sidewall-conscious radial set.
Why it ranks #1: The set of four steel-belted radials pairs ST225/75R15 sizing with a 10-ply rating, 2,830-pound listed capacity, and protective scuff guard.
A sidewall-and-rim Scuff Guard gives this four-tire Free Country set a specific protection feature, intended to help protect those areas and extend tire life. Its ST225/75R15 radial size and Load Range E construction suit trailer owners seeking a coordinated replacement set with a stated 2,830-pound load capacity per tire.
The 10-ply Load Range E construction and stated 2,830-pound capacity per tire give buyers concrete load information when matching tires to a trailer’s requirements. The steel-belted radial design distinguishes it from bias-ply options, while the Scuff Guard adds protection at the sidewall and rim and is intended to extend tire life. With four tires in the set and a 15-inch rim size, it offers a single purchase for a trailer needing four matching ST225/75R15 tires.
- Set of four ST225/75R15 trailer tires
- 10-ply Load Range E construction
- Stated 2,830-pound load capacity per tire
- Scuff Guard protects sidewall and rim
- Tread depth is not specified in the supplied details.
Skip it if you need a stated tread-depth figure before choosing; the supplied product details advise asking about tread depth.
This set suits trailer owners replacing four ST225/75R15 tires who value radial construction and added sidewall protection. Check the trailer’s required tire size and load capacity, and ask about tread depth before deciding.
Full product details
| Brand | Free Country |
|---|---|
| Item Dimensions | 28 x 16 x 28 inches |
| Item Weight | 28.8 pounds |
| Load Capacity | 2830 pounds |
| Manufacturer | WINDA |
| Part Number | ST225/75R15GR10 |
| Model Number | D207 |
| Rim Size | 15 inches |
| Size | 225/75R15 10PR |
| Vehicle Tire ISO Metric Size Description | 225/75R15 |
Listed on Amazon as: Free Country Grand Ride Set 4 Trailer Tires ST225/75R15 10 Ply Load Range E Steel Belted Radial w/Featured Scuff Guard
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#2 · Best Nylon Overlay
2. Free Country HD
- Size: Set of 4
- Rim Size: 15 in
- Load Capacity: 2400 lb
- Weight: 49.2 lb
Best for: Full-tread nylon-cap set.
Why it ranks #2: This four-tire ST205/75R15 set has a 10-ply rating, 2,400-pound capacity, full nylon cap-ply overlay, and scuff guard.
A full-width nylon cap ply across the tread is the key feature of this four-tire Free Country HD set, which the listing contrasts with shoulder-only nylon strips. The ST205/75R15 Load Range E tires are rated at 2,400 pounds each and also feature a sidewall Scuff Guard.
The full nylon cap ply overlay across the tread is presented as a safety-related construction upgrade, giving buyers a specific distinction to weigh when comparing trailer tires. Load Range E, 10-ply rating, and 2,400-pound capacity per tire provide load information, while the Scuff Guard adds sidewall protection. The four-tire set simplifies a full replacement, but it is explicitly for trailer use only and rims are not included, so this is not a wheel assembly.
- Set of four ST205/75R15 trailer tires
- 10-ply Load Range E construction
- 2,400-pound capacity per tire
- Full-tread nylon cap ply overlay and Scuff Guard
- Rims are not included.
Skip it if you need an all-steel tire construction; Transeagle’s ST205/75R15 listing specifies 14-ply all-steel tires.
This set suits trailer owners replacing four ST205/75R15 tires who value full-tread nylon overlay and sidewall protection. It is trailer-only and tire-only, so source compatible rims separately and match the load rating to the trailer.
Full product details
| Brand | Libra Trailer Parts |
|---|---|
| Item Dimensions | 27 x 14 x 27 inches |
| Item Weight | 49.2 pounds |
| Load Capacity | 2400 pounds |
| Manufacturer | LIBRA TRAILER PARTS |
| Part Number | ST205 75R15 |
| Rim Size | 15 inches |
| Size | Set of 4 |
| Vehicle Tire ISO Metric Size Description | 205/75R15 |
Listed on Amazon as: Free Country HD Trailer Tires ST205/75R15 10PR LRE 111N w/Scuff Guard, Set4
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#3 · Best All-Season Detail
3. NAMA NM616
- Size: ST205 75R15
- Rim Size: 15 in
- Load Capacity: 2400 lb
Best for: All-season highway radial set.
Why it ranks #3: The ST205/75R15 radial is Load Range E with a listed 2,400-pound capacity; supplied facts also describe its highway-terrain, all-season design.
A five-rib tread with a flat, symmetric footprint is the NAMA NM616’s defining road-contact feature, intended to support stable handling for trailer use. This set of four ST205/75R15 Load Range E radial tires has a stated 2,400-pound capacity per tire and reinforced construction.
The five-rib tread and flat, symmetric footprint are described as promoting balanced road contact, which supports the listing’s stability and responsive-handling claims. A nylon-reinforced casing and wear-resistant rubber compound are specified to resist cuts, chips, and abrasions, while the 10-ply Load Range E construction and 2,400-pound capacity per tire address load matching. These are highway-terrain, all-season tires for trailers only, not light trucks, so vehicle application is an important boundary.
- Set of four ST205/75R15 radial trailer tires
- Load Range E, 10-ply construction
- Stated 2,400-pound capacity per tire
- Five-rib tread and reinforced, wear-resistant construction
- The listing explicitly says these tires are not meant for light trucks.
Skip it if you need tires for a light truck; NAMA specifies that the NM616 is for trailers only.
The NM616 suits trailer owners seeking four all-season highway-terrain ST205/75R15 tires with a stated 2,400-pound capacity each. Its trailer-only application is a firm boundary: do not choose it for a light truck.
Full product details
| Brand | NAMA |
|---|---|
| Included Components | Two ST 205 75R15 Trailer tires in one package, two packages |
| Load Capacity | 2400 pounds |
| Manufacturer | NAMA |
| Part Number | NM616 |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Rim Size | 15 inches |
| Size | ST205 75R15 |
| Vehicle Tire ISO Metric Size Description | 205/75R15(E) |
Listed on Amazon as: NAMA NM616 Set of 4 ST205/75R15 Trailer Tires, Load Range E 10 Ply Heavy Duty ST Tire Radial Trailer Tire
View on Amazon
#4 · Highest Ply Rating
4. Transeagle ST All Steel
- Size: 205/75R15
- Rim Size: 15 in
- Load Capacity: 2649 lb
- Weight: 82 lb
Best for: High-ply all-steel trailer pair.
Why it ranks #4: Its ST205/75R15 all-steel construction is listed at 14 ply and 2,649 pounds of capacity, a notably heavy-duty specification.
Fourteen-ply all-steel construction distinguishes this Transeagle pair for trailer owners comparing heavy-duty tire specifications. The ST205/75R15 all-season tires carry a stated 2,649-pound load capacity each, offering specific size and load information for checking against a trailer’s requirements.
The 14-ply rating and all-steel construction are the defining specifications for buyers seeking this particular tire build. The ST205/75R15 size and 15-inch rim specification help identify the intended replacement dimensions, while the stated 2,649-pound capacity per tire supports comparison with trailer load needs. The listing includes two tires but no rims, so owners replacing wheels as well must source them separately; the all-season designation is also stated in the product title.
- Two ST205/75R15 trailer tires
- 14-ply all-steel construction
- Stated 2,649-pound load capacity per tire
- All-season designation
- Rims are not included.
Skip it if you need a four-tire purchase; NAMA’s NM616 listing specifies a set of four ST205/75R15 tires.
This Transeagle pair suits trailer owners seeking two ST205/75R15 all-steel tires with a stated 2,649-pound capacity each. It is a tire-only purchase, so arrange compatible 15-inch rims separately and check the load requirement for your trailer.
Full product details
| Brand | Transeagle |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 26 x 26 x 7 inches |
| Item Weight | 82 pounds |
| Load Capacity | 2649 pounds |
| Manufacturer | Transeagle |
| Part Number | TA27 |
| Model Number | TA27 |
| Rim Size | 15 inches |
| Size | 205/75R15 |
| Vehicle Tire ISO Metric Size Description | 205/75R15 |
Listed on Amazon as: 2 x Transeagle ST ST205/75R15 All Season G (14 Ply) All Steel Tires
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#5
5. Transeagle ST Radial II
- Size: 225/75R15
- Rim Size: 15 in
- Load Capacity: 2833 lb
- Weight: 28 lb
Best for: Single radial tire replacement.
Why it ranks #5: This ST225/75R15 10-ply radial lists a 2,833-pound capacity, slightly above the other listed 10-ply tire in that size.
A stated 2,833-pound load capacity sets this Transeagle ST Radial II apart for trailer owners comparing single-tire replacements. Its ST225/75R15 size, 10-ply construction, and 117/112N designation provide specific details for checking the tire against the trailer’s required size and load specifications.
The 10-ply rating and 2,833-pound stated load capacity offer concrete information for evaluating this tire against a trailer’s load requirements. Its ST225/75R15 size and 15-inch rim specification help identify the intended replacement dimensions, while radial construction distinguishes it from bias-ply alternatives. The listing is for one tire only, not a complete wheel assembly, so buyers sourcing a replacement need to arrange a compatible rim separately and should verify the trailer’s specified tire size.
- ST225/75R15 radial trailer tire
- 10-ply construction
- Stated 2,833-pound load capacity
- 117/112N designation
- The listing is for one tire only; no rim is included.
Skip it if you need a four-tire set; Free Country’s Grand Ride ST225/75R15 listing offers four tires.
This Transeagle suits a trailer owner replacing one ST225/75R15 tire and comparing load specifications. It is not a complete wheel assembly or multi-tire set, so account for the separate rim and any additional replacements your trailer needs.
Full product details
| Brand | Transeagle |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 27 x 27 x 8 inches |
| Item Weight | 28 pounds |
| Load Capacity | 2833 pounds |
| Manufacturer | Transeagle |
| Part Number | TSL10N |
| Manufacturer Warranty Description | No |
| Model Number | TSL10N |
| Rim Size | 15 inches |
| Size | 225/75R15 |
| Vehicle Tire ISO Metric Size Description | 225/75R15 |
Listed on Amazon as: Transeagle ST Radial II ST225/75R15 117/112N E (10 Ply) Tire
View on Amazon
#6
6. Horseshoe ST-King II
- Size: ST 225/75R15 12PR
- Rim Size: 15 in
- Load Capacity: 1400 kg
Best for: Heavy-load radial replacement.
Why it ranks #6: The ST225/75R15 radial has a 12-ply rating and a two-year manufacturer warranty; verify its listed 1,400 kg capacity against trailer requirements.
Twelve-ply construction is the defining feature of this HORSESHOE ST-KING II set, giving trailer owners a heavy-duty radial option in ST225/75R15. Its stated 1,400-kilogram load capacity and 15-inch rim size help buyers assess whether these four tires match their trailer’s tire and load requirements.
The 12PR rating and stated 1,400-kilogram load capacity provide useful specifications for owners checking trailer load requirements. Steel-belted radial construction and the ST225/75R15 size identify the intended tire type and dimensions, while the set of four makes it a coordinated replacement option. The title also specifies a Rim-Guard-Wall feature, but rims are not included, so buyers must source compatible wheels separately rather than treating this as a tire-and-wheel assembly.
- Four ST225/75R15 tires
- 12PR construction
- Stated 1,400-kilogram load capacity
- Rim-Guard-Wall feature named in the title
- Rims are not included.
Skip it if you need wheels included in the purchase; Garvee’s ST205/75D14 two-pack comes with 14-inch rims.
This set is for trailer owners seeking four 12PR steel-belted radial tires in ST225/75R15. It is a tire-only purchase, so plan separately for compatible 15-inch rims and check the stated load capacity against trailer requirements.
Full product details
| Brand | HORSESHOE |
|---|---|
| Included Components | Tires Only, Rim Not Included |
| Load Capacity | 1400 kg |
| Manufacturer | HORSESHOE TIRE GROUP |
| Part Number | ST-KING II |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Model Number | LIPIZZAN ST KING II |
| Rim Size | 15 inches |
| Size | ST 225/75R15 12PR |
| Vehicle Tire ISO Metric Size Description | ST225/75R15 |

#7
7. Free Country ST205/75R14
- Size: 205/75R14 8PR
- Rim Size: 14 in
- Load Capacity: 2040 lb
- Weight: 45.6 lb
Best for: Scuff-guard 14-inch radials.
Why it ranks #7: This pair of radial ST205/75R14 tires offers an 8-ply rating, 2,040-pound listed capacity, and sidewall scuff protection.
Scuff Guard protection at the tire sidewall and rim is the practical differentiator of this two-tire Free Country radial set. Its ST205/75R14 size, 8-ply Load Range D construction, and stated 2,040-pound capacity per tire give trailer owners useful details for replacement planning.
The radial ST205/75R14 size identifies the tire dimensions, while the 8PR Load Range D rating and 2,040-pound capacity per tire support load matching against trailer requirements. Free Country’s Scuff Guard adds protection to the sidewall and rim and is described as helping extend tire life. As a set of two tires rather than an assembly with wheels, it suits partial replacements but leaves rim sourcing to the buyer if new wheels are needed.
- Set of two ST205/75R14 radial tires
- 8-ply Load Range D construction
- Stated 2,040-pound load capacity per tire
- Scuff Guard protects sidewall and rim
- The package is a two-tire set, not a four-tire set.
Skip it if you need four ST205/75R14 tires at once; Free Country’s Grand Ride listing is a four-tire set in ST225/75R15.
This pair suits trailer owners replacing two ST205/75R14 radials who want sidewall and rim protection. It is not a complete four-tire replacement, and the trailer’s required tire size and load capacity remain key fit considerations.
Full product details
| Brand | Free Country |
|---|---|
| Item Dimensions | 25 x 15 x 25 inches |
| Item Weight | 45.6 pounds |
| Load Capacity | 2040 pounds |
| Manufacturer | Grand Ride |
| Part Number | ST20575R14 |
| Model Number | D107 |
| Rim Size | 14 inches |
| Size | 205/75R14 8PR |
| Vehicle Tire ISO Metric Size Description | 205/75R14 |
Listed on Amazon as: Free Country Set 2 Premium Trailer Tires ST205/75R14 8PR LR D w/Scuff Guard
View on Amazon
#8 · Best Rim Assembly
8. eCustomRim ST205/75D15
- Size: Set of 2
- Rim Size: 15 in
- Weight: 72 lb
Best for: 15-inch bias-ply wheel assembly.
Why it ranks #8: The two bias-ply tires are rated for 1,820 pounds each and come mounted on 15-by-5-inch rims with a specified five-lug pattern.
A complete two-piece tire-and-rim package gives eCustomRim buyers a matched 15-inch trailer assembly, with a five-lug, 4.5-inch bolt pattern and 3.19-inch center bore specified. The ST205/75D15 bias tires have Load Range C construction and a stated maximum load of 1,820 pounds each.
The included 15-by-5-inch rims, 3.19-inch center bore, and five-lug, 4.5-inch bolt pattern help buyers check wheel compatibility using several specific dimensions. Each ST205/75D15 bias tire is rated for up to 1,820 pounds at 50 PSI, with a 27.2-inch overall diameter noted in the listing. Those details make it easier to compare the assembly with an existing trailer setup, but the bias-ply construction is an important distinction for owners seeking radial tires.
- Two ST205/75D15 bias-ply tire assemblies
- 15-by-5-inch rims
- Five-lug, 4.5-inch bolt pattern and 3.19-inch center bore
- 1,820-pound maximum load per tire at 50 PSI
- The tires use bias-ply construction rather than radial construction.
Skip it if you require radial tires; Transeagle’s ST Radial II is an ST225/75R15 radial option.
This assembly suits trailer owners seeking two 15-inch bias-ply tire-and-wheel replacements with detailed rim dimensions. Compare the bolt pattern, center bore, tire size, and load rating with your trailer, and avoid it if radial construction is required.
Full product details
| Brand | eCustomRim |
|---|---|
| Color | White |
| Compatible with Vehicle Type | Trailer |
| Included Components | User Guide |
| Item Weight | 72 pounds |
| Manufacturer | eCustomRim |
| Part Number | 58875-2 |
| Manufacturer Warranty Description | Two Years |
| Material | Metal |
| Rim Size | 15 inches |
| Size | Set of 2 |
| Wheel Size | 15 inches |
Listed on Amazon as: eCustomrim 2 Pack Trailer Tire Assembly ST205/75D15 Load C 5 Lug White
View on Amazon
#9
9. Garvee ST205/75D14
- Size: ST205/75D14
- Rim Size: 14 in
- Weight: 70.6 lb
Best for: Rim-included utility trailer pair.
Why it ranks #9: This pair includes 14-inch steel rims and 6-ply bias tires rated for 1,760 pounds at 50 PSI, useful when matching rims are needed.
Included 14-inch steel rims make this Garvee two-pack a tire-and-wheel assembly rather than a tire-only purchase. The ST205/75D14 bias tires use 6-ply Load Range C construction and are rated for up to 1,760 pounds at 50 PSI, while the listed five-lug, 4.5-inch bolt pattern identifies the wheel fitment.
The included 14-by-6-inch steel rims and five-lug, 4.5-inch bolt pattern let buyers assess wheel compatibility as part of the assembly purchase. The ST205/75D14 tires have 6-ply Load Range C construction and a stated 1,760-pound capacity at 50 PSI, specifications useful when checking a utility, boat, camper, or cargo trailer’s requirements. Because the tire size and bolt pattern are specific, buyers should match both to their trailer rather than assuming the assembly fits every trailer.
- Two ST205/75D14 tires with rims included
- 14-by-6-inch steel rims
- Five-lug, 4.5-inch bolt pattern
- 1,760-pound capacity at 50 PSI
- The stated maximum load is 1,760 pounds per tire.
Skip it if you need ST205/75D15 tires; eCustomRim’s two-pack is a 15-inch bias-ply assembly rated at 1,820 pounds per tire.
This pair fits buyers seeking ST205/75D14 tire-and-rim assemblies for a utility, boat, camper, or cargo trailer. Its 14-inch size and five-lug, 4.5-inch pattern are specific fit considerations, and its load rating is 1,760 pounds per tire.
Full product details
| Brand | Garvee |
|---|---|
| Color | Black |
| Compatible with Vehicle Type | Trailer |
| Included Components | 2x Trail Tires with Rims |
| Item Weight | 70.6 pounds |
| Manufacturer | Garvee |
| Part Number | PAE_33DYLFN7_GARVEEWXs5q |
| Manufacturer Warranty Description | 30 days manufacturer |
| Material | Rubber |
| Rim Size | 14 inches |
| Size | ST205/75D14 |
| Wheel Size | 66.2 centimeters |

#10
10. WANDA ST205/75D15
- Size: 205/75D15 Pack of 2
- Rim Size: 15 in
- Load Capacity: 1.82E+3 lb
- Weight: 39.2 lb
Best for: Bias-ply two-tire replacement.
Why it ranks #10: These two bias-ply ST205/75D15 tires have a 6-ply rating and 1,820-pound listed capacity, but rims are not included.
A deeper-tread bias-ply design distinguishes this two-tire Free Country set, giving trailer owners a pair of ST205/75D15 replacements with a stated 1,820-pound maximum load per tire. The 6-ply Load Range C specification and 50 PSI maximum help buyers compare it with their trailer’s requirements.
These are bias tires rather than radials, a distinction that matters when matching replacement construction to a trailer’s existing setup. The 6-ply Load Range C rating, 1,820-pound maximum load per tire, and 50 PSI figure give buyers concrete limits to check against their trailer specifications. The deeper tread is described as intended for longer life, while the two-tire package suits a partial replacement; rims are not included, and the specified rim width is 5.5 inches.
- Two ST205/75D15 trailer tires
- Bias-ply, 6-ply Load Range C construction
- Maximum load of 1,820 pounds per tire at 50 PSI
- Deeper tread described as supporting longer life
- Rims are not included.
Skip it if you want radial tires; Free Country’s Grand Ride ST225/75R15 set uses steel-belted radial construction.
Choose this pair if your trailer calls for ST205/75D15 bias tires and you need two replacements with a stated load and pressure limit. The package excludes rims, and its 5.5-inch rim-width specification should suit your wheel setup.
Full product details
| Brand | WANDA |
|---|---|
| Item Dimensions | 25 x 11 x 25 inches |
| Item Weight | 39.2 pounds |
| Load Capacity | 1.82E+3 pounds |
| Manufacturer | WANDA |
| Part Number | ST205/75D15 |
| Model Number | ST205/75D15 |
| Rim Size | 15 inches |
| Size | 205/75D15 Pack of 2 |
| Vehicle Tire ISO Metric Size Description | 205/75D15 |
Listed on Amazon as: WANDA Set 2 Free Country Trailer Tires ST 205/75D15 Deep Tread- 11021
View on AmazonAvoid the load-rating and fitment trap
A tire’s listed load capacity only helps if the tire size, rating, and wheel fitment match the trailer’s requirements. These products span ST225/75R15 and ST205/75R15, as well as 14-inch sizes, so matching only the diameter or choosing the highest ply count can lead to the wrong fit. The Transeagle ST All Steel is listed at 14 ply, while the Free Country Grand Ride is 10 ply and lists 2,830 pounds of capacity; those numbers do not establish which one is suitable for a particular trailer.
Check the trailer placard or manual for tire size and load requirements, and verify the wheel and bolt pattern when buying assemblies. The Garvee includes 14-inch rims with a five-lug, 4.5-inch bolt pattern, while the eCustomRim assembly specifies the same bolt pattern on 15-inch rims.
Do not assume either fits your hubs without checking.
Radial versus bias: choose for the right trade-off
Radial and bias-ply tires are different constructions, so choose based on your trailer requirements rather than treating one as universally better. Radial options in this lineup include the Free Country Grand Ride, Transeagle ST Radial II, and Free Country HD; the latter also lists a full nylon cap-ply overlay across the tread. Bias-ply choices include the WANDA ST205/75D15 and the eCustomRim assembly.
The WANDA lists a 1,820-pound capacity, while eCustomRim supplies two tires rated for 1,820 pounds each along with rims. These figures help compare the listed products but do not establish expected service life or suitability for every towing pattern.
Use the size and load guidance from the trailer maker first. If a replacement must match existing tires, keep construction and dimensions consistent unless a qualified tire professional confirms a change is appropriate.
How to Choose Trailer ST Tires
Match the tire size
Start with the exact ST tire size specified for your trailer, not a size that merely looks close. This selection includes ST225/75R15 and ST205/75R15 radials, ST205/75R14 radials, and bias sizes such as ST205/75D15 and ST205/75D14. The letter in the size designation differs between the radial R and bias D products here, so do not assume they are interchangeable.
Buyers replacing a 15-inch radial set should compare the Free Country Grand Ride or NAMA NM616 if their specified size matches. Those needing a 14-inch radial can consider the Free Country ST205/75R14.
Check the trailer’s documentation and wheel specifications before ordering; size is a fitment requirement, not a preference to resolve by choosing the highest capacity.
Compare capacity and ply rating
Choose a tire whose load capacity meets the trailer maker’s requirement, and assess capacity alongside the specified tire size. Listed capacities range from 1,400 kg for the Horseshoe ST-King II to 2,833 pounds for the Transeagle ST Radial II; ratings include 6-, 8-, 10-, 12-, and 14-ply options. The Free Country Grand Ride lists 2,830 pounds at 10 ply, while the Transeagle ST All Steel lists 2,649 pounds at 14 ply.
That illustrates why ply rating alone should not determine the purchase. A buyer whose trailer calls for a higher listed capacity can compare the specific figures, but must also verify the correct size and axle requirements.
Never use a tire’s maximum figure as permission to exceed the trailer’s rated limits.
Decide whether you need rims
Check whether you need tires only or complete tire-and-rim assemblies, then verify the wheel dimensions and bolt pattern. Most choices here are tire-only; the Garvee package explicitly includes two 14-inch rims with a five-lug, 4.5-inch pattern, and eCustomRim provides two bias tires on 15-by-5-inch rims with a stated five-lug, 4.5-inch pattern. Tire-only choices such as the Free Country Grand Ride do not list rims as included.
An assembly can suit someone replacing a compatible wheel setup, while tire-only products suit buyers who already have suitable rims. Do not order by rim diameter alone: confirm bolt pattern, center bore where stated, and trailer compatibility.
If the product information does not settle fitment, check with the trailer or wheel manufacturer before buying.
Which Trailer ST Tire Should You Choose?
Choose the Free Country Grand Ride if your trailer calls for ST225/75R15 and you want four 10-ply radials with a listed 2,830-pound capacity and scuff guard. For ST205/75R15, the Free Country HD provides four tires, 2,400-pound capacity, and a full nylon cap-ply overlay; the NAMA NM616 is another radial option with a listed 2,400-pound capacity. Buyers needing the higher listed ply rating can examine the Transeagle ST All Steel, but should confirm its 14-ply specification and capacity suit their trailer.
For a 14-inch radial, consider the Free Country ST205/75R14. If you need rims, compare the Garvee or eCustomRim assembly only after checking wheel fitment.
For bias-ply replacements, the WANDA is a tire-only pair. Verify size and load requirements before ordering.
Related Buying Guides
Frequently Asked Questions
How do I confirm the correct ST tire size and load rating for my trailer?
Check the trailer’s documentation and current tire information for the required ST size and load capacity. Match both to the replacement tire, and confirm that its rating meets the trailer’s requirements. Also verify wheel fitment if the listing includes rims; a matching tire size alone does not confirm that an assembly fits.
When should I choose radial ST tires instead of bias-ply tires?
Choose radial ST tires when they match your trailer’s specified size and load requirements and you prefer radial construction. Bias-ply tires are another replacement option when they meet those same requirements. Do not select by construction alone: confirm the required tire size, load capacity, and any wheel fitment before ordering.
How often should trailer tires be inspected or replaced, even if the tread looks usable?
Inspect trailer tires regularly, including before trips, for visible damage, wear, and signs of aging. Tread appearance alone cannot confirm that a tire remains suitable. Follow the trailer and tire manufacturers’ guidance for inspection and replacement intervals, and address damage or uncertainty before towing rather than relying only on remaining tread.
How can I tell whether a listing includes rims?
Read the product title and listing details carefully: some options here are described as tire-and-rim assemblies, while others are tire listings. If rims are included, check the wheel specifications against your trailer, including bolt pattern and other fitment requirements. Do not assume a tire-only listing includes wheels.
Is a higher ply rating enough to choose a trailer tire?
No. A higher listed ply rating does not by itself establish that a tire suits your trailer. Confirm the required size and load capacity in the trailer documentation, then check the tire’s listed specifications.
Choose a higher-ply option only when its size, capacity, and fitment meet your trailer’s requirements.
Final Words
Start with the trailer’s documented tire size and load requirement, then compare construction and included equipment. The Free Country Grand Ride is the overall pick when ST225/75R15 and its listed capacity suit your trailer. For other sizes, consider the matching options described above, but verify capacity and fitment before ordering.
If choosing a rim assembly, confirm wheel compatibility; if replacing tires only, remember that rims may not be included.


