A strong 10-ply 15-inch trailer tire should match your trailer’s required size and load rating, and suit how many tires you need to replace. The Free Country Grand Ride Set of 4 leads this lineup with ST225/75R15 sizing, a stated 2,830-pound load capacity per tire, and a sidewall-and-rim Scuff Guard. This selection also includes 205/75R15 options, individual tires and smaller sets, and familiar names such as Goodyear and Hankook.
Those differences matter: the same 15-inch rim does not make two tire sizes interchangeable, and a set listing may not provide the quantity you need. Compare the size on your trailer placard, its required load capacity, and the listing’s package details before choosing.
The guide ranks all 10 products using their supplied specifications and features.
The Free Country Grand Ride is the best overall choice in this lineup because it combines ST225/75R15 sizing, a stated 2,830-pound load capacity, and a four-tire set. Its Scuff Guard is described as adding protection to the sidewall and rim. Confirm that 225/75R15 matches your trailer and that the package suits your replacement needs; buyers needing another size or a different quantity should compare the alternatives below.
Our Top Picks
Best OverallThe four-tire set has ST225/75R15 sizing, a stated 2,830-pound load capacity, and Scuff Guard protection for the sidewall and rim.
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Best Single-Tire MatchThis ST225/75R15 tire is identified as E/10, has a stated 2,830-pound load capacity, and is supplied as one tire.
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Best All-Season Tread DetailThe ST225/75R15 10-ply listing specifies a 117/112N load index and describes an all-season tread for dry, wet, and winter conditions.
View on Amazon- Best Two-Tire 225 Set ROCKMAN ST225/75R15
- Best Stated Warranty Mastertrack UN203
Compare the 10-Ply 15-Inch Trailer Tire Options
| # | Product | Load Capacity | Rim Size | Size | Weight | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. Free Country Grand RideBest Overall | 2830 lb | 15 in | 225/75R15 10PR | 28.8 lb | View on Amazon |
| 2 | 2. Goodyear EnduranceBest Single-Tire Match | 2830 lb | 15 in | ST225/75R15 117N E/10 | 33 lb | View on Amazon |
| 3 | 3. Hankook Vantra ST01Best All-Season Tread Detail | 2 lb | 15 in | ST225/75R15 | 34.3 lb | View on Amazon |
| 4 | 4. ROCKMAN ST225/75R15Best Two-Tire 225 Set | 2830 lb | 15 in | ST225/75R15 | 57.6 lb | View on Amazon |
| 5 | 5. Power King Towmax STR IICommercial trailer operators | 2830 lb | 15 in | ST225/75R15 | 34 lb | View on Amazon |
| 6 | 6. Mastertrack UN203Best Stated Warranty | 2400 lb | 15 in | ST205/75R15 10Ply | — | View on Amazon |
| 7 | 7. NAMA NM616All-season trailer haulers | 2400 lb | 15 in | ST205 75R15 | — | View on Amazon |
| 8 | 8. Transeagle ST IIAll-season 205-size haulers | 2403 lb | 15 in | 205/75R15 | 29 lb | View on Amazon |
| 9 | 9. ROCKMAN ST205/75R15205-size four-tire shoppers | — | — | — | 50.4 lb | View on Amazon |
| 10 | 10. Omni Trail Capability STRHeavy trailer radial users | — | 15 in | ST225/75R15 -10PLY | — | View on Amazon |
Detailed Reviews: Best 10 Ply 15 Inch Trailer Tires

#1 · Best Overall
1. Free Country Grand Ride
- Load Capacity: 2830 lb
- Rim Size: 15 in
- Size: 225/75R15 10PR
- Weight: 28.8 lb
Best for: Sidewall-protection seekers.
Why it ranks #1: The four-tire set has ST225/75R15 sizing, a stated 2,830-pound load capacity, and Scuff Guard protection for the sidewall and rim.
The Free Country set pairs a 225/75R15, 10-ply Load Range E radial tire with a Scuff Guard that adds protection to the sidewall and rim. That feature gives trailer owners a specific defense against scuffing in vulnerable areas, while the listed 2,830-pound load capacity helps define its carrying role.
Its 15-inch rim size and 225/75R15 specification give buyers concrete dimensions to compare with their trailer’s requirements, while the 10-ply Load Range E construction identifies its load range. The steel-belted radial design is stated in the title, and the Scuff Guard adds extra protection for the sidewall and rim. Together, those details suit owners prioritizing sidewall protection alongside a clearly specified trailer tire; the listed load capacity is 2,830 pounds per tire.
- Scuff Guard adds sidewall and rim protection.
- 225/75R15 size for 15-inch rims.
- 10-ply Load Range E construction.
- Listed load capacity is 2,830 pounds.
- The set is specified in 225/75R15, not the narrower 205/75R15 size.
Skip it if you need ST205/75R15 tires; the Mastertrack UN203 set is listed in that narrower size.
Choose this set if your trailer calls for 225/75R15 Load Range E tires and you value added sidewall and rim protection. Its 2,830-pound capacity is listed per tire, so account for the complete trailer setup.
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 Single-Tire Match
2. Goodyear Endurance
- Load Capacity: 2830 lb
- Rim Size: 15 in
- Size: ST225/75R15 117N E/10
- Weight: 33 lb
Best for: High-capacity 225-size buyers.
Why it ranks #2: This ST225/75R15 tire is identified as E/10, has a stated 2,830-pound load capacity, and is supplied as one tire.
Goodyear Endurance specifies an ST225/75R15 117N E/10 tire with a listed 2,830-pound capacity, giving trailer owners a clear size and load figure to evaluate. Its all-season designation broadens the stated use context, while the 15-inch rim specification helps buyers compare it with their existing trailer wheel setup.
The ST225/75R15 size and 15-inch rim designation provide direct dimensional references for checking a trailer’s setup. Its E/10 marking and 2,830-pound listed load capacity offer load-related information for assessing the tire’s role, while the 117N designation supplies another stated specification. The listing identifies an all-season radial tire, but does not provide detailed tread-pattern claims or specific wet, dry, or winter performance benefits. It is sold as a tire only, so quantity planning is separate.
- ST225/75R15 size for 15-inch rims.
- E/10 specification.
- Listed 2,830-pound load capacity.
- All-season radial tire designation.
- The listing is for a tire only, not a multi-tire set.
Skip it if you want listed five-rib tread and wet, dry, and snow traction details; NAMA NM616 supplies those specifics.
Goodyear Endurance suits trailer owners seeking an all-season ST225/75R15 radial with a listed 2,830-pound capacity. It is a tire-only listing, so buyers planning a pair or full set need to account for the required quantity.
Full product details
| Brand | Goodyear |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 28.3 x 28.3 x 8.8 inches |
| Item Weight | 33 pounds |
| Load Capacity | 2830 pounds |
| Manufacturer | Goodyear |
| Part Number | 724857519 |
| Manufacturer Warranty Description | Standard Manufacturer Warranty |
| Model Number | 724857519 |
| Rim Size | 15 inches |
| Size | ST225/75R15 117N E/10 |
| Vehicle Tire ISO Metric Size Description | 225/75R15 |
Listed on Amazon as: Goodyear Endurance all_ Season Radial Tire-225/75R15 117N
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#3 · Best All-Season Tread Detail
3. Hankook Vantra ST01
- Load Capacity: 2 lb
- Rim Size: 15 in
- Size: ST225/75R15
- Weight: 34.3 lb
Best for: All-weather branded tire buyers.
Why it ranks #3: The ST225/75R15 10-ply listing specifies a 117/112N load index and describes an all-season tread for dry, wet, and winter conditions.
Hankook’s Vantra ST01 combines an all-season tread pattern with a new rubber compound, which the listing associates with traction in dry, wet, and winter weather and improved tire strength. Its ST225/75R15 size gives trailer owners a clear fit reference, while the specialty trailer-tire designation distinguishes its stated application.
The all-season tread pattern is described as supporting traction and performance in dry, wet, and winter conditions, useful for owners facing varied road weather. Hankook also identifies a new rubber compound and durable construction, both connected in the listing to strength and longer tread life. The ST225/75R15 size and 15-inch rim specification help buyers compare dimensions with their trailer. Although the listing includes a load-capacity field, its stated value is not a meaningful usable capacity figure, so rely on verified tire markings for load decisions.
- All-season tread pattern for dry, wet, and winter conditions.
- New rubber compound is stated to boost strength and durability.
- Construction is described as supporting longer tread life.
- ST225/75R15 specialty trailer tire size.
- The supplied load-capacity value is not a usable capacity figure.
Skip it if you require a clear 2,830-pound capacity in the listing; Goodyear Endurance states that figure for ST225/75R15.
This Hankook suits trailer owners seeking an ST225/75R15 all-season tire with stated wet, dry, and winter traction. Its load-capacity field is unclear in the supplied data, so verify load requirements through reliable tire markings.
Full product details
| Brand | HANKOOK |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 28.2 x 8.7 x 28.2 inches |
| Item Weight | 34.3 pounds |
| Load Capacity | 2 pounds |
| Manufacturer | Hankook |
| Part Number | 2021437 |
| Manufacturer Warranty Description | Standard Manufacturer Warranty |
| Model Number | 2021437 |
| Rim Size | 15 inches |
| Size | ST225/75R15 |
| Vehicle Tire ISO Metric Size Description | ST225/75R15 |
Listed on Amazon as: HANKOOK Vantra ST01 Trailer ST225/75R15 TL 10 117/112N
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#4 · Best Two-Tire 225 Set
4. ROCKMAN ST225/75R15
- Load Capacity: 2830 lb
- Rim Size: 15 in
- Size: ST225/75R15
- Weight: 57.6 lb
Best for: 225-size two-tire buyers.
Why it ranks #4: This two-tire set matches the ST225/75R15 size and lists a 2,830-pound load capacity, making its package quantity clear.
ROCKMAN’s set of two steel-belted radial trailer tires pairs ST225/75R15 sizing with 10-ply Load Range E and a listed 2,830-pound capacity. That combination gives buyers a defined 15-inch trailer-tire size and a per-tire load figure, while the two-tire quantity suits owners sourcing a pair.
The ST225/75R15 designation identifies the tire size, and the 15-inch rim specification helps buyers compare it with their trailer’s wheels. Its 10-ply Load Range E rating and 2,830-pound listed capacity provide key load-related details for checking the tire against the trailer’s requirements. The steel-belted radial construction is specified in the title, and the listing states that the package contains two tires. The supplied information does not give a tread design or all-season performance details.
- Set of two tires.
- ST225/75R15 size for 15-inch rims.
- Steel-belted radial construction.
- Listed 2,830-pound capacity and 10-ply Load Range E.
- This listing supplies two tires, not a four-tire set.
Skip it if you need four matching tires at once; Free Country’s Grand Ride listing specifies a set of four in 225/75R15.
This ROCKMAN pair suits trailer owners needing ST225/75R15 Load Range E tires and a listed 2,830-pound capacity per tire. Its two-tire quantity is the main boundary for buyers planning a four-tire replacement.
Full product details
| Brand | ROCKMAN |
|---|---|
| Item Dimensions | 28 x 8 x 28 inches |
| Item Weight | 57.6 pounds |
| Load Capacity | 2830 pounds |
| Manufacturer | ROCKMAN |
| Part Number | ST225/75R15 |
| Rim Size | 15 inches |
| Size | ST225/75R15 |
| Vehicle Tire ISO Metric Size Description | 225/75R15 |
Listed on Amazon as: ROCKMAN Trailer Tire ST225/75R15 10-Ply LR E 117M Steel Belted Radial, Set2
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#5
5. Power King Towmax STR II
- Load Capacity: 2830 lb
- Rim Size: 15 in
- Size: ST225/75R15
- Weight: 34 lb
Best for: Commercial trailer operators.
Why it ranks #5: The ST225/75R15 radial lists a 2,830-pound load capacity and a 126 load index, with a tread described for commercial applications.
Power King’s Towmax STR II uses a commercial-application tread and an optimized compound that the listing says lowers rolling resistance to improve fuel efficiency. Its ST225/75R15 radial format and listed 2,830-pound capacity give commercial trailer operators additional sizing and load details to compare against their towing requirements.
The radial construction and ST225/75R15 size identify the tire type and dimensions, helping buyers compare it with a trailer’s wheel setup. Power King states that its optimized tread compound lowers rolling resistance to improve fuel efficiency, a practical operating benefit specifically claimed for commercial applications. The listing also gives a 2,830-pound load capacity and a 126 load index. These figures provide useful comparison points, but the supplied details do not state 10-ply or Load Range E construction.
- Commercial-application tread.
- Optimized compound is stated to lower rolling resistance.
- ST225/75R15 radial size.
- Listed 2,830-pound capacity and 126 load index.
- The supplied specifications do not state 10-ply or Load Range E construction.
Skip it if you require an explicit 10-ply Load Range E specification; the Goodyear Endurance listing identifies E/10.
Consider the Towmax STR II for commercial trailer use if its ST225/75R15 size and listed capacity suit your setup, and its stated rolling-resistance benefit matters. The supplied specifications do not confirm 10-ply or Load Range E construction.
Full product details
| Brand | Power King |
|---|---|
| Included Components | Tire |
| Item Dimensions | 28.2 x 8.8 x 28.2 inches |
| Item Weight | 34 pounds |
| Load Capacity | 2830 pounds |
| Manufacturer | Power King |
| Part Number | MAX53T |
| Rim Size | 15 inches |
| Size | ST225/75R15 |
| Vehicle Tire ISO Metric Size Description | 225/75R15 |
Listed on Amazon as: Power King Towmax STR II Trailer ST225/75R15 126L
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#6 · Best Stated Warranty
6. Mastertrack UN203
- Load Capacity: 2400 lb
- Rim Size: 15 in
- Size: ST205/75R15 10Ply
Best for: ST205/75R15 replacement buyers.
Why it ranks #6: This four-tire ST205/75R15 set lists a 2,400-pound load capacity and a three-year road warranty in its specifications.
Mastertrack’s four-tire UN203 set specifies ST205/75R15 sizing, 10-ply Load Range E construction, and a 111N marking, giving buyers several concrete details for comparing a trailer replacement. Its listed 2,400-pound load capacity helps define the carrying specification, while the 15-inch rim size identifies the wheel diameter it is sized for.
The ST205/75R15 designation and 15-inch rim size provide the core dimensions to compare with the trailer’s existing tire and wheel setup. Its 10-ply Load Range E construction and 2,400-pound listed capacity offer further load-related specifications for evaluating suitability, while the 111N marking is another stated tire designation. Supplied information identifies four tires in the set, which suits a buyer sourcing a complete four-tire group; the listed details do not describe a specialized tread feature.
- Set of four tires.
- ST205/75R15 size for 15-inch rims.
- 10-ply Load Range E construction.
- Listed 2,400-pound load capacity.
- The supplied feature details do not identify a specialized tread design.
Skip it if you want stated five-rib tread benefits; the NAMA NM616 lists a five-rib design and all-season road traction.
The UN203 set fits shoppers seeking four ST205/75R15 Load Range E trailer tires with a stated 2,400-pound capacity. Compare those specifications with your trailer’s requirements; the supplied details do not describe tread behavior.
Full product details
| Brand | Mastertrack |
|---|---|
| Included Components | Tire |
| Load Capacity | 2400 pounds |
| Manufacturer | Mastertrack |
| Part Number | HF-ST73N-A4B |
| Manufacturer Warranty Description | 3 Years Road Warranty |
| Model Number | HF-ST73N-A4B |
| Model Year | 2025 |
| Rim Size | 15 inches |
| Size | ST205/75R15 10Ply |
| Vehicle Tire ISO Metric Size Description | 205/75R15 |
Listed on Amazon as: Set of 4 UN203 ST205/75R15 111N 10 Ply Load Range E Radial Trailer Tires
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#7
7. NAMA NM616
- Load Capacity: 2400 lb
- Rim Size: 15 in
- Size: ST205 75R15
Best for: All-season trailer haulers.
Why it ranks #7: The four-tire ST205/75R15 offering lists a 2,400-pound load capacity and a two-year manufacturer warranty, with reinforced construction described.
NAMA’s NM616 combines a five-rib tread with a nylon-reinforced casing, giving trailer owners stated support for stable road contact and resistance to cuts, chips, and abrasions. The ST205/75R15 Load Range E tire is specifically identified for trailer use, not light trucks, and has a listed 2,400-pound load capacity.
The patented five-rib tread creates a flat, symmetric footprint, which the supplied details connect to balanced road contact, stability, and responsive handling. A nylon-reinforced casing and wear-resistant rubber compound are described as protecting against cuts, chips, and abrasions while extending tread life. Its trailer-specific ST205/75R15 size, 10-ply Load Range E construction, and 2,400-pound capacity help buyers evaluate the intended application. The listing also identifies an all-season highway-terrain tire with traction claims for wet, dry, and snow-covered roads.
- Five-rib tread is associated with balanced road contact.
- Nylon-reinforced casing resists cuts, chips, and abrasions.
- All-season traction is stated for wet, dry, and snowy roads.
- Listed 2,400-pound capacity and 10-ply Load Range E.
- The manufacturer states this tire is not meant for light trucks.
Skip it if you need a tire for a light truck; this NAMA model is explicitly intended for trailers only.
Pick the NM616 for trailer use when its ST205/75R15 size and 2,400-pound listed capacity suit your setup. Its construction is not intended for light trucks, so keep its trailer-only application in view.
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
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#8
8. Transeagle ST II
- Load Capacity: 2403 lb
- Rim Size: 15 in
- Size: 205/75R15
- Weight: 29 lb
Best for: All-season 205-size haulers.
Why it ranks #8: This individual 205/75R15 E, 10-ply tire lists a 2,403-pound load capacity and is described as an all-season trailer tire.
Transeagle’s ST II is an all-season 205/75R15 tire with a 10-ply Load Range E specification and a listed 2,403-pound capacity. Those details give trailer owners a defined size and load figure to compare, while the manufacturer describes the tire as offering handling, load durability, and traction for commercial and trailer use.
The 205/75R15 size and 15-inch rim specification help establish whether this tire matches the trailer’s wheel setup, while the 10-ply Load Range E marking identifies its stated load-range construction. Its 2,403-pound load capacity provides a specific figure for evaluating a tire’s role in the trailer’s overall load plan. The all-season designation and manufacturer claims for handling, durability, and traction add context, though the supplied details do not identify a particular tread pattern or weather-specific performance measure.
- All-season tire designation.
- 205/75R15 size for 15-inch rims.
- 10-ply Load Range E specification.
- Listed 2,403-pound load capacity.
- The listing specifies a tire only, rather than a multi-tire set.
Skip it if you need four tires in one set; Mastertrack’s UN203 listing specifies a set of four in ST205/75R15.
Consider the Transeagle ST II if one 205/75R15 all-season trailer tire matches your setup and its 2,403-pound listed capacity fits your load plan. The listing is for a tire only, so quantity matters.
Full product details
| Brand | Transeagle |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 26 x 26 x 7 inches |
| Item Weight | 29 pounds |
| Load Capacity | 2403 pounds |
| Manufacturer | TransEagle |
| Part Number | TSL08AN |
| Manufacturer Warranty Description | Standard Manufacturer Warranty |
| Model Number | TSL08AN |
| Rim Size | 15 inches |
| Size | 205/75R15 |
| Vehicle Tire ISO Metric Size Description | 205/75R15 |
Listed on Amazon as: Transeagle ST II ST205/75R15 111/106N All Season E (10 Ply) Tire
View on AmazonWhy it ranks #9: The listing identifies a 10-ply Load Range E ST205/75R15 tire and a set of four, but supplies no load-capacity figure.
The ROCKMAN All Trail set supplies four ST205/75R15 trailer tires in 10-ply Load Range E, giving buyers a matching four-tire option in this narrower 15-inch size. Its title also lists a 110M designation, which lets shoppers compare the marked tire specification with their trailer requirements before choosing.
The ST205/75R15 size identifies the tire dimensions, while the 15-inch rim specification provides a direct reference for wheel matching. Load Range E and 10-ply construction name its stated load-range construction, and the 110M marking adds another specification for buyers to check against their trailer needs. The listing identifies a set of four, making it a single matched-count option for owners replacing four tires; the supplied facts do not state a load capacity.
- Set of four tires.
- ST205/75R15 trailer tire size.
- 10-ply Load Range E specification.
- 110M designation appears in the title.
- The supplied specifications do not list a load capacity.
Skip it if you need a stated 2,830-pound capacity per tire; the ROCKMAN ST225/75R15 set of two lists that figure.
This is a fit for trailer owners seeking four ST205/75R15 Load Range E tires with a 110M marking. Use its stated size and rating details as comparison points, but note that the supplied specifications omit load capacity.
Full product details
| Brand | ROCKMAN |
|---|---|
| Item Weight | 50.4 pounds |
| Manufacturer | ROCKMAN |
| Part Number | ST205/75R15 |
| Model | All Trail |
Listed on Amazon as: ROCKMAN Heavy Duty Trailer Tire ST205/75R15 10-Ply Load Range E 110M, Set4
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#10
10. Omni Trail Capability STR
- Rim Size: 15 in
- Size: ST225/75R15 -10PLY
Best for: Heavy trailer radial users.
Why it ranks #10: This two-tire ST225/75R15 10-ply listing emphasizes reinforced trailer sidewalls, but provides no load-capacity figure in the supplied specifications.
Omni Trail’s STR radial tire pairs ST225/75R15 sizing with reinforced sidewalls, a combination the listing connects to heavy RV, boat, and cargo trailer use. The reinforced structure is described as supporting cargo and resisting sidewall deflection during demanding turns, giving trailer owners a specific construction feature to weigh for towing.
Its specialty ST radial construction is presented for trailer applications, while the reinforced sidewalls are described as supporting heavy cargo and maintaining tire integrity during long-distance transport. The listing also connects the sidewall structure with reduced deflection in demanding turns and balanced towing stability. ST225/75R15 sizing provides a concrete fit reference, and the product is listed as two tires with 10-ply construction. No load capacity figure appears in the supplied specifications, so buyers have fewer stated load details for comparison.
- Specialty ST radial construction for trailer use.
- Reinforced sidewalls support heavy cargo, according to the listing.
- Sidewall structure is described as resisting deflection in turns.
- Two ST225/75R15 tires with 10-ply construction.
- The supplied specifications do not state a load capacity.
Skip it if you need a listed 2,830-pound load capacity; the Goodyear Endurance ST225/75R15 states that figure.
Choose Omni Trail if you want two 10-ply ST225/75R15 radials for heavy RV, boat, or cargo trailer use. Its reinforced sidewalls are a stated benefit, but the supplied specifications leave load capacity unstated.
Full product details
| Brand | Omni Trail |
|---|---|
| Manufacturer | Omni Trail |
| Part Number | OTG0630 |
| Model Number | OTG0638 |
| Rim Size | 15 inches |
| Size | ST225/75R15 -10PLY |
| Vehicle Tire ISO Metric Size Description | ST225/75R15 |
Listed on Amazon as: Omni Trail Capability STR Radial Trailer Tire, ST225/75R15, 2 Tires, 10-Ply
View on AmazonAvoid the wrong trailer tire size
A 15-inch rim alone does not confirm that a tire fits your trailer; check the complete tire size and the trailer’s required specifications. This lineup includes ST205/75R15 tires, such as the Mastertrack UN203 and NAMA NM616, and ST225/75R15 options such as the Free Country Grand Ride and Goodyear Endurance. Both size groups list 15-inch rims, yet their overall tire dimensions differ, so do not substitute one size for the other based only on rim diameter.
Read the tire sidewall and trailer placard, then verify the replacement size against the trailer or axle manufacturer’s requirements. Also check the load rating for the specific tire: the listed 2,400-pound capacity on some 205/75R15 products is not interchangeable with a required capacity simply because both tires are 10-ply.
If the placard, existing tire, or axle information conflicts, confirm fitment with the trailer maker or a qualified tire professional before ordering.
Package quantity can complicate replacement
The quantity in a listing can determine whether you receive enough tires for your intended replacement, so confirm the actual package contents rather than relying on the title alone. This selection includes the Free Country Grand Ride as a set of four, the ROCKMAN ST225/75R15 as a set of two, and individual listings such as the Goodyear Endurance and Transeagle ST II. The NAMA listing describes two tires per package and two packages, while its specifications identify included components as two tires in one package, two packages.
That detail is worth verifying with the seller before purchase. A two-tire listing may suit replacing a pair, but it does not automatically mean all tires on the trailer are included.
Match the listed quantity to the number you plan to replace, and check that all replacement tires meet the trailer’s required size and load rating.
How to Choose 15-Inch Trailer Tires
Tire size and load capacity
Start by matching the full ST tire size and required load capacity to your trailer’s specifications. Listed sizes here include ST205/75R15 and ST225/75R15; both use 15-inch rims, but they are not the same tire size. For 205/75R15 options, stated capacities include 2,400 pounds for Mastertrack and NAMA, 2,403 pounds for Transeagle, and 2,400 pounds for the NAMA listing.
For 225/75R15, Free Country, ROCKMAN, Goodyear, and Power King list 2,830 pounds, while the Hankook capacity field is an anomalous 2 pounds and should not be relied on. Choose only a size and capacity that meet your trailer’s documented requirements; a larger listed figure is not a reason to change fitment.
Set size and listed quantity
Check how many tires the listing actually includes before deciding which option fits your replacement job. The products range from individual tires, including Goodyear Endurance and Transeagle ST II, to two-tire listings such as ROCKMAN ST225/75R15 and Omni Trail, and four-tire listings such as Free Country and Mastertrack. NAMA describes two tires per package and two packages, but the quantity wording merits confirmation.
A single tire can suit a one-tire replacement when the remaining tires are suitable and compatible; a pair or four-tire set may better match a broader replacement. Do not assume that the word set means the same quantity across listings.
Confirm the exact number shipped and ensure every replacement matches the trailer’s required size and load rating.
Construction details and warranty
Compare the construction or protection details that are actually stated, and treat warranty terms as a separate consideration. Free Country describes a Scuff Guard for added sidewall and rim protection, while NAMA lists a nylon-reinforced casing and wear-resistant rubber compound. Omni Trail highlights reinforced sidewalls, and Hankook describes a durable construction and all-season tread.
Warranty information also varies: Mastertrack lists a three-year road warranty, NAMA a two-year manufacturer warranty, and several other listings give only a standard manufacturer warranty or no specific duration. These descriptions are not comparative test results, so they do not establish which tire lasts longest.
Sidewall protection details may matter to buyers concerned about contact damage; buyers focused on warranty documentation can favor a listing with an explicit duration, while checking the full terms before purchase.
Which 10-Ply 15-Inch Trailer Tire Should You Choose?
For a four-tire ST225/75R15 replacement with a stated 2,830-pound capacity, choose Free Country Grand Ride, the top-ranked option with Scuff Guard protection. If you need one ST225/75R15 tire, Goodyear Endurance lists E/10 construction and the same stated capacity; for a two-tire package in that size, consider ROCKMAN ST225/75R15. Buyers whose trailer specifies ST205/75R15 can compare Mastertrack UN203, a four-tire set with a stated 2,400-pound capacity and three-year road warranty, with NAMA NM616.
Choose Transeagle ST II if you need one 205/75R15 tire and its stated 2,403-pound capacity matches your requirements. Confirm exact fitment, required load rating, package quantity, and warranty terms before ordering.
Related Buying Guides
Frequently Asked Questions
How can I confirm whether my trailer needs ST205/75R15 or ST225/75R15 tires?
Check the trailer’s tire placard, owner’s manual, or other manufacturer fitment information for the specified tire size. Confirm the replacement matches that size and the required load rating; do not choose a different size based only on appearance. If the records are unclear, ask the trailer manufacturer or a qualified tire professional to verify fitment.
Should I replace trailer tires in pairs or as a complete set?
Replace tires according to their condition and your trailer’s requirements, while ensuring the tires used together have compatible size and load ratings. A pair or full set may make sense when multiple tires need replacement, but package quantity alone does not determine what your trailer needs. Inspect all tires and confirm fitment before ordering.
What causes trailer tire sidewall damage, and how can I reduce the risk?
Sidewall damage can result from impacts, rubbing, or operating a tire under unsuitable conditions. Reduce risk by checking for contact with trailer components, avoiding curbs and road hazards where possible, and maintaining the inflation and load limits specified for the tire and trailer. Inspect sidewalls regularly and replace tires with damage that compromises safe use.
How do I know what load capacity my replacement tires need?
Use the trailer manufacturer’s stated requirements and verify that each replacement tire’s load rating meets them. Do not assume that a tire is suitable just because its size matches. Compare the marked rating with your trailer documentation, and confirm that the selected tire and installation are appropriate for the trailer’s actual use.
What should I verify when ordering a tire set?
Confirm the tire size, required load rating, and number of tires included in the package before ordering. Also check the warranty terms if they matter to your decision. Listings can offer one tire, two tires, or four, so make sure the quantity matches your replacement plan rather than relying on the word “set.”
Final Words
Start with the tire size and load rating specified for your trailer, then choose a package quantity that matches your replacement needs. For a four-tire ST225/75R15 replacement, Free Country Grand Ride is the top-ranked option here, with a stated 2,830-pound capacity and Scuff Guard protection. For another size or quantity, compare the listed alternatives and verify fitment, capacity, and warranty terms before ordering.



