A strong 145 R12 trailer tire should match your trailer’s required size and load capacity; the eCustomRim Radial Tire leads this group with a listed 1,520-pound capacity, Load Range E, and an 80 PSI maximum. These six options include individual tires and a two-tire pack, with listed capacities ranging from 1,047 to 1,520 pounds. The Carlisle and Kenda choices also list 1,520 pounds, while the Transeagle and Hi-Run models list lower capacities.
Tire size descriptions vary across listings, so check the exact sidewall markings and your trailer manual rather than relying on the product title alone. This comparison helps you narrow the choices by capacity and format, but it cannot confirm fitment for a particular trailer or wheel.
The eCustomRim Radial Tire is the leading choice because it is listed as a 145/R12 radial trailer tire with Load Range E, a 1,520-pound capacity, and an 80 PSI maximum. Its deep-tread design and six-year manufacturer warranty are additional listed details. Choose it only after confirming that its size and load rating meet your trailer manufacturer’s requirements.
If you need two tires, the eCustomRim Two-Pack lists the same per-tire capacity and pressure.
Our Top Picks
Best OverallThis 145/R12 radial lists Load Range E, a 1,520-pound capacity, 80 PSI maximum, deep tread, and a six-year manufacturer warranty.
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Heat ProtectionThe ST145/12 LRE tire lists a 1,520-pound capacity and 80 PSI recommendation, plus DuraTrail and HeatShield technologies.
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High CapacityThis ST145R12 Load Range E radial lists a 1,520-pound capacity and 10-ply rating, though its tire size description differs.
View on Amazon- Two-Tire Pack eCustomRim Two-Pack
Compare these 145 R12 trailer tire options
| # | Product | Load Capacity | Size | Rim Size | Buy |
|---|---|---|---|---|---|
| 1 | 1. eCustomRim Radial TireBest Overall | 1520 lb | 145/R12 | 12 in | View on Amazon |
| 2 | 2. Carlisle Radial Trail RHHeat Protection | 1520 lb | ST145R12 E | 12 in | View on Amazon |
| 3 | 3. Kenda Karrier RadialHigh Capacity | 1.52E+3 lb | 145R12 | 12 in | View on Amazon |
| 4 |  4. eCustomRim Two-PackTwo-Tire Pack | 1520 lb | 145/R12 | 12 in | View on Amazon |
| 5 |  5. Transeagle ST Radial IILower-capacity 10-ply trailer tire | 1235 lb | 145/80R12 | 12 in | View on Amazon |
| 6 |  6. Hi-Run ST100All-season trailer highway use | 1047 lb | 145R12 | 12 in | View on Amazon |
Detailed Reviews: Best 145 R12 Trailer Tire
#1 · Best Overall
1. eCustomRim Radial Tire
- Load Capacity: 1520 lb
- Size: 145/R12
- Rim Size: 12 in
Best for: Single deep-tread radial replacement.
Why it ranks #1: This 145/R12 radial lists Load Range E, a 1,520-pound capacity, 80 PSI maximum, deep tread, and a six-year manufacturer warranty.
This single eCustomRim tire pairs Load Range E radial construction with deep tread intended to improve traction and control across varied road conditions. Its stated 1,520-pound capacity and 21.5-inch overall diameter give trailer owners useful load and sizing references when replacing one tire rather than buying a pair.
The deep tread is specified to enhance traction and control across varied road conditions, which can matter when a trailer travels beyond consistently smooth pavement. Load Range E radial construction supports a stated capacity of up to 1,520 pounds, and the listed 80 PSI maximum gives an inflation ceiling for setup. Unlike the two-pack listing, this product is a single tire, so replacing both tires on an axle would require sourcing a second tire separately.
- Single 145/R12 radial tire
- Load Range E construction
- Up to 1,520-pound capacity
- Deep tread intended to aid traction and control
- This listing is for one tire, so a two-tire replacement requires a second purchase.
Skip it if you need a pair in one listing; the two-pack eCustomRim DEEP TREAD listing includes two tires.
This single tire suits trailer owners replacing one 145/R12 tire who want Load Range E construction and deep tread. Its 1,520-pound capacity and 80 PSI maximum are operating boundaries, and the listing does not supply a pair.
Full product details
| Brand | eCustomRim |
|---|---|
| Included Components | User Guide |
| Item Dimensions | 22 x 6 x 22 inches |
| Item Weight | 12 pounds |
| Load Capacity | 1520 pounds |
| Manufacturer | eCustomRim |
| Part Number | 59041A |
| Manufacturer Warranty Description | Six Years |
| Rim Size | 12 inches |
| Size | 145/R12 |
| Vehicle Tire ISO Metric Size Description | 145/90R12 |
Listed on Amazon as: eCustomrim ST145/R12 145/R12 DEEP TREAD Radial Trailer Tire Load Range E
View on Amazon#2 · Heat Protection
2. Carlisle Radial Trail RH
- Load Capacity: 1520 lb
- Size: ST145R12 E
- Rim Size: 12 in
Best for: Highway-focused trailer towing.
Why it ranks #2: The ST145/12 LRE tire lists a 1,520-pound capacity and 80 PSI recommendation, plus DuraTrail and HeatShield technologies.
Carlisle’s DuraTrail and HeatShield technologies address heat buildup and premature wear, making this radial a highway-oriented choice for demanding trailer work. Its 1,520-pound maximum capacity and recommended 80 PSI provide concrete load and inflation limits, while the tire-only listing makes clear that a rim is not included.
The DuraTrail and HeatShield technologies are specified to protect against excessive heat buildup and premature wear, relevant for sustained highway towing. Carlisle also describes a deep all-season tread, low rolling resistance, and a noise-tuned pattern, features that support varied trailer use and quieter rolling. With a stated maximum capacity of 1,520 pounds and recommended 80 PSI, buyers can plan around defined operating limits; the tire-only format means mounting requires a separate compatible rim.
- DuraTrail and HeatShield technologies address heat buildup and wear
- Deep all-season tread pattern
- Low rolling resistance design
- Maximum capacity of 1,520 pounds
- The listing is tire-only; a rim is not included.
Skip it if you need a rim in the same listing; the two-tire eCustomRim 145/R12 pack supplies a pair of tires, though its listing does not specify a rim.
This Carlisle suits owners towing RVs, horse trailers, or boat trailers who value heat-focused technologies and highway-oriented tread features. It is a tire-only purchase, and its 145/12 listing should be checked against the trailer’s specifications.
Full product details
| Brand | Carlisle |
|---|---|
| Included Components | Tire |
| Item Dimensions | 21.4 x 21.4 x 6 inches |
| Item Weight | 7.1 pounds |
| Load Capacity | 1520 pounds |
| Manufacturer | Carlisle |
| Part Number | 5151321 |
| Manufacturer Warranty Description | No Warranty |
| Model Number | 5151321 |
| Rim Size | 12 inches |
| Size | ST145R12 E |
| Vehicle Tire ISO Metric Size Description | 145/70R12 |
Listed on Amazon as: Carlisle Radial Trail RH Trailer Tire – ST145/12 LRE
View on Amazon#3 · High Capacity
3. Kenda Karrier Radial
- Load Capacity: 1.52E+3 lb
- Size: 145R12
- Rim Size: 12 in
Best for: Kenda Load Range E replacement.
Why it ranks #3: This ST145R12 Load Range E radial lists a 1,520-pound capacity and 10-ply rating, though its tire size description differs.
Kenda’s Karrier radial is specified as Load Range E and 10-ply rated, giving trailer owners a defined heavy-duty construction category in a 145R12 tire. Its listed 1,520-pound capacity supplies an important load reference for replacement planning, though the available product details are limited to core tire specifications.
The radial construction and 10-ply Load Range E rating identify the tire’s stated build, while the listed 1,520-pound capacity helps owners assess whether its load rating matches a trailer’s needs. The 145R12 size and 12-inch rim specification offer key replacement measurements. Because the supplied details do not provide tread, inflation-pressure, or seasonal-performance information, buyers should rely on the trailer’s requirements and the tire’s full sidewall information when planning setup and operation.
- Radial trailer tire construction
- Load Range E and 10-ply rated
- Listed capacity of 1,520 pounds
- 145R12 size with 12-inch rim specification
- The supplied listing provides no tread-pattern or inflation-pressure details.
Skip it if you want stated all-season traction characteristics; the HI-RUN ST100 specifically describes dry, wet, and winter traction.
This Kenda fits trailer owners seeking a 145R12 radial with a 1,520-pound listed capacity and Load Range E rating. Its supplied details are sparse, so buyers needing published tread or pressure information should consider that boundary.
Full product details
| Brand | Kenda |
|---|---|
| Load Capacity | 1.52E+3 pounds |
| Manufacturer | Kenda Karrier |
| Part Number | 10140 |
| Rim Size | 12 inches |
| Size | 145R12 |
| Vehicle Tire ISO Metric Size Description | 145/100R12 |
Listed on Amazon as: ST145R12 LRE 10 PR Kenda Karrier Radial Trailer Tire
View on Amazon#4 · Two-Tire Pack
4. eCustomRim Two-Pack
- Load Capacity: 1520 lb
- Size: 145/R12
- Rim Size: 12 in
Best for: Two-tire heavy-haul set.
Why it ranks #4: The two-tire set lists 1,520 pounds per tire, Load Range E, and 80 PSI maximum, with deep tread for varied road conditions.
A two-pack of Load Range E radial tires, each rated for up to 1,520 pounds, gives trailer owners a matched pair for hauling. The 21.5-inch overall diameter and 80 PSI maximum pressure add useful sizing and inflation details when planning a replacement around the trailer’s requirements.
Deep tread is specified to enhance traction and control across varied road conditions, a practical feature for trailers that encounter changing surfaces during longer trips. Radial construction and Load Range E support a towing setup rated up to 1,520 pounds per tire, while the stated 80 PSI maximum gives an inflation limit to follow. The two-tire pack can supply both tires for an axle replacement; check the trailer’s required size and capacity before installation.
- Two tires included in the pack
- Load Range E radial construction
- Up to 1,520-pound capacity per tire
- Deep tread intended to aid traction and control
- The 1,520-pound rating per tire sets a firm load limit for heavier trailer requirements.
Skip it if you need a tire rated above 1,520 pounds; the Carlisle Radial Trail RH is also rated at 1,520 pounds, not higher.
This set suits trailer owners replacing a pair who want deep-tread radials rated for up to 1,520 pounds each. Its 145/R12 size and 80 PSI maximum remain boundaries to check against the trailer’s specifications.
Full product details
| Brand | eCustomRim |
|---|---|
| Included Components | User Guide |
| Item Dimensions | 22 x 12 x 22 inches |
| Item Weight | 24 pounds |
| Load Capacity | 1520 pounds |
| Manufacturer | eCustomRim |
| Part Number | 59041-2 |
| Manufacturer Warranty Description | Six Years |
| Rim Size | 12 inches |
| Size | 145/R12 |
| Vehicle Tire ISO Metric Size Description | 145/R12 |
Listed on Amazon as: eCustomrim 2-Pack ST145/R12 DEEP TREAD Radial Trailer Tire Load Range E
View on Amazon#5
5. Transeagle ST Radial II
- Load Capacity: 1235 lb
- Size: 145/80R12
- Rim Size: 12 in
Best for: Lower-capacity 10-ply trailer tire.
Why it ranks #5: This ST145/80R12 tire is listed with an E load range and 10-ply construction, but its capacity is 1,235 pounds.
The Transeagle ST Radial II combines a 10-ply, Load Range E designation with a stated 1,235-pound capacity, giving trailer owners a clearly bounded radial option. Its 145/80R12 size and 12-inch rim specification help frame replacement planning, while the brand describes handling, load durability, and traction as product strengths.
The 10-ply Load Range E designation identifies the tire’s construction category, while its listed 1,235-pound capacity sets the load ceiling buyers need to account for in a trailer setup. The 145/80R12 size and 12-inch rim specification provide the key sizing details for replacement planning. Transeagle describes handling, load durability, and traction as strengths, but the supplied listing does not state an inflation pressure, so use the trailer’s own guidance for operating requirements.
- 10-ply Load Range E designation
- Listed capacity of 1,235 pounds
- 145/80R12 size
- Transeagle describes handling, load durability, and traction
- Its 1,235-pound capacity is below the 1,520-pound ratings listed for several alternatives.
Skip it if you need capacity above 1,235 pounds; the Kenda Karrier ST145R12 is rated at 1,520 pounds.
This Transeagle is for trailer owners whose load requirements fit its 1,235-pound rating and 145/80R12 sizing. Buyers needing a higher stated capacity should look elsewhere, and should use trailer guidance for inflation because none is supplied here.
Full product details
| Brand | Transeagle |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 20 x 20 x 5 inches |
| Item Weight | 13 pounds |
| Load Capacity | 1235 pounds |
| Manufacturer | Transeagle |
| Part Number | TA28 |
| Model Number | TA28 |
| Rim Size | 12 inches |
| Size | 145/80R12 |
| Vehicle Tire ISO Metric Size Description | 145/80R12 |
Listed on Amazon as: Transeagle ST Radial II ST145/80R12 88/83L E (10 Ply) Tire
View on Amazon#6
6. Hi-Run ST100
- Load Capacity: 1047 lb
- Size: 145R12
- Rim Size: 12 in
Best for: All-season trailer highway use.
Why it ranks #6: The ST145R12 all-season trailer tire is listed with an E load range, but its 1,047-pound capacity is lowest in this selection.
The HI-RUN ST100 is described as a highway-terrain, all-season trailer tire with traction for dry, wet, and winter conditions. That seasonal scope can suit owners keeping a trailer in year-round service, while its 1,047-pound listed capacity gives a clear limit to compare with the trailer’s required load.
Its ribbed footprint is specified alongside all-season use, and the description names dry, wet, and winter traction, supporting year-round trailer operation across changing conditions. The highway-terrain designation identifies its intended trailer use, while the 145R12 size and 12-inch rim specification help guide replacement planning. Its listed capacity is 1,047 pounds, so the load requirement needs to stay within that figure; the description explicitly says not to mount it on light trucks.
- All-season trailer tire described for dry, wet, and winter traction
- Highway-terrain use
- 145R12 size
- Ribbed footprint
- The listed 1,047-pound capacity is lower than 1,520-pound-rated options.
Skip it if you need a capacity above 1,047 pounds; the Carlisle Radial Trail RH is rated for up to 1,520 pounds.
This HI-RUN suits trailer owners seeking a highway-terrain tire described for year-round conditions, provided their load stays within 1,047 pounds. It is for trailers, not light trucks, and its capacity is a key fit boundary.
Full product details
| Brand | HI-RUN |
|---|---|
| Included Components | Tire Only |
| Item Dimensions | 19 x 19 x 6 inches |
| Item Weight | 16 pounds |
| Load Capacity | 1047 pounds |
| Manufacturer | Hi-Run |
| Part Number | HZT1014 |
| Model Number | HZT1014 |
| Rim Size | 12 inches |
| Size | 145R12 |
| Vehicle Tire ISO Metric Size Description | 145R12 |
Listed on Amazon as: Hi-Run ST100 ST145R12 All Season 82/77M E (10 Ply) Trailer Radial Tire
View on AmazonAvoid size-description mismatches
A 145 R12 label alone does not prove that every listing will match your trailer’s required tire. The data here shows differing size descriptions even among products titled for this category: the Carlisle lists ST145/12 E but gives a vehicle tire size description of 145/70R12, while the Kenda title says ST145R12 and its description says 145/100R12. The eCustomRim single tire lists 145/R12 and 145/90R12.
These differences are a reason to verify the exact tire markings and the trailer manufacturer’s specifications before ordering. Also check wheel diameter, clearance, and load requirements for your particular setup; the supplied listings do not establish those details.
A near-match in the product title is not a substitute for confirming fitment, and a tire that physically mounts may still be inappropriate if its size or capacity does not meet the trailer’s requirements.
Understand the capacity trade-off
The listed load capacities span 1,047 to 1,520 pounds per tire, so choosing by size alone can leave a meaningful capacity difference. The eCustomRim, Carlisle, and Kenda options each list 1,520 pounds, while the Transeagle lists 1,235 pounds and the Hi-Run lists 1,047 pounds. These figures are per-tire listing values, not a determination of how much your loaded trailer can safely carry: the trailer’s rating, axle limits, tire condition, and load distribution also matter.
Do not assume that a higher listed capacity makes a tire compatible with your trailer, or that the lowest-capacity option is sufficient just because its size appears to match. Use the required load rating in the trailer manual and confirm it against the tire sidewall.
The listings do not provide a complete vehicle-specific fitment check.
How to Choose a 145 R12 Trailer Tire
Load capacity
Look for a listed capacity that meets your trailer’s requirements, with suitable capacity for each tire. Three options lead this group at 1,520 pounds: the eCustomRim Radial Tire, Carlisle Radial Trail RH, and Kenda Karrier Radial. The Transeagle ST Radial II lists 1,235 pounds, and the Hi-Run ST100 lists 1,047 pounds.
The eCustomRim Two-Pack also lists 1,520 pounds per tire. These are product specifications, not a substitute for the trailer’s axle and tire ratings.
Buyers whose trailer requires the higher listed capacity can focus on the 1,520-pound options; a lower-capacity tire may suit a trailer only if its manufacturer’s requirements allow it.
Exact tire size and fit
Check the required tire marking and wheel size against the trailer manual and the actual sidewall before choosing. Listings describe the tires in different ways: the Carlisle says ST145/12 LRE but lists 145/70R12 as its vehicle tire size description; the Kenda says ST145R12 but lists 145/100R12; and the Transeagle lists 145/80R12. The eCustomRim products list 145/R12, while the Hi-Run lists 145R12.
Every product lists a 12-inch rim size, but that alone does not confirm complete fitment. Buyers with a precise required sidewall specification should verify the complete markings with the seller or manufacturer; do not select solely by the shared 145 R12 wording.
Single tire or two-tire set
Choose the package format that matches the number of replacements you need, and compare capacity per tire rather than treating a pair’s rating as one combined rating. The eCustomRim Two-Pack includes two tires and lists 1,520 pounds per tire; the eCustomRim Radial Tire is a single tire with the same listed capacity. The Carlisle, Kenda, Transeagle, and Hi-Run listings are also individual tires.
A two-tire set may suit a buyer replacing both tires on an axle, while a single tire may be appropriate when only one replacement is needed and the other tire remains suitable. Confirm matching size, load rating, and condition across the trailer’s tires before deciding.
Which 145 R12 trailer tire should I choose?
For the strongest listed combination of capacity and supporting details, choose the eCustomRim Radial Tire: it lists 1,520 pounds per tire, Load Range E, 80 PSI maximum, and deep tread. If you need two tires, the eCustomRim Two-Pack lists the same per-tire capacity. Choose the Carlisle Radial Trail RH if its listed 1,520-pound capacity and heat-related technologies suit your priorities; consider the Kenda Karrier Radial for its 1,520-pound listing and 10-ply rating.
The Transeagle ST Radial II lists 1,235 pounds, and the Hi-Run ST100 lists 1,047 pounds, so check carefully that either meets your trailer’s required capacity. Before ordering any option, confirm the complete size marking and fitment against your trailer manual.
Frequently Asked Questions
How can I confirm whether a 145 R12 tire will fit my trailer wheel and fender clearance?
Check your trailer manual and existing tire sidewall for the complete size marking, then confirm the wheel is compatible with that tire. Verify clearance around the fender and other trailer parts with the tire fitted, including room for movement. Do not rely on the size alone; confirm fitment with the trailer manufacturer or a qualified tire professional.
Should trailer tires be replaced in pairs or as a full set?
Follow your trailer manufacturer’s guidance, and replace tires with matching size and load capability. If replacing one tire would leave mismatched tires on an axle, replacing that axle’s pair can help maintain consistency; replace the full set when needed to meet the trailer’s requirements. Have a qualified tire professional assess condition and compatibility.
What cold inflation pressure should I use for my trailer’s load?
Use the pressure specified by the trailer or tire manufacturer for your actual load, checking it when the tires are cold. A tire’s listed maximum pressure is not automatically the correct operating pressure for every load. The eCustomRim options list an 80 PSI maximum; confirm the appropriate pressure using the manufacturer’s guidance.
Can I mix radial trailer tires with different load ratings?
Do not assume tires with different load ratings are suitable to mix. Confirm that every tire meets the trailer manufacturer’s required capacity and that the tires on each axle are compatible in size and type. The listed capacities vary among these options, so check each tire’s rating against the trailer requirements before fitting or combining them.
What should I check before ordering a replacement trailer tire?
Confirm the complete tire size marking, load rating, and fitment against your trailer manual before ordering. Compare the required capacity with the tire’s listed capacity, and check wheel compatibility and fender clearance. For example, the listed capacities range from 1,047 to 1,520 pounds per tire, so verify the specific option meets your trailer’s needs.
Final Words
The eCustomRim Radial Tire is the leading choice when its listed 1,520-pound capacity, Load Range E, 80 PSI maximum, and deep tread meet your trailer’s requirements; choose its two-pack if you need two tires. Consider Carlisle or Kenda for their listed 1,520-pound capacity, while checking the lower listed capacities of Transeagle and Hi-Run particularly carefully. Confirm complete size, capacity, pressure guidance, and fitment in your trailer manual before ordering.
