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BFGoodrich All-Terrain T/A KO3 Review: LT275/70R18/E 125/122S
Your truck tire has to carry weight, stay stable on pavement, handle gravel, and keep biting when snow or mud turns the road loose. The BFGoodrich All-Terrain T/A KO3 in LT275/70R18/E 125/122S is built for that kind of mixed use.
This review looks at the verified specs, buyer-fit details, road manners, off-road strengths, winter rating, and tradeoffs of this exact KO3 size. You should come away knowing if it fits your truck or SUV, and if its E-load construction is useful for the way you drive.
Quick Verdict
Rating: 8.1/10
Best For: Truck and SUV drivers who want a tough E-load all-terrain tire for pavement, gravel, snow, job sites, and weekend trail access.
Bottom Line: The KO3 gives you strong load support, a 3PMSF severe snow rating, CoreGard sidewall protection, and a 50,000-mile treadwear warranty. The tradeoff is a heavier feel, more road presence, and less fuel-efficiency focus than a highway-terrain tire.
| Specification | Detail |
|---|---|
| Brand | BFGoodrich |
| Model | All-Terrain T/A KO3 |
| Product Type | All-terrain light truck, SUV, and crossover tire |
| Size | LT275/70R18/E 125/122S |
| Service Description | 125/122S |
| Model Number / MPN | 78075 |
| ASIN | B0CY3PXZHN |
| Load Range | E, 10-ply rated |
| Load Capacity | 3,640 pounds |
| Load Index | 125 |
| Speed Rating | S |
| Section Width | 275 millimeters |
| Aspect Ratio | 70 |
| Rim Size | 18 inches |
| Rim Width Guidance | Article-supported range: 7 to 9 inches. Confirm your wheel and vehicle fitment before ordering. |
| Tire Diameter | 33.2 inches |
| Listed Item Dimensions | 32 x 32 x 9 inches |
| Listed Weight | 55 pounds on the Amazon listing; other retailer listings may vary |
| Tread Depth | 16/32 inch |
| Maximum Pressure | 80 psi |
| Construction | Radial |
| Tread Type | Symmetrical all-terrain tread |
| Season / Rating Notes | Year-round listing, M+S, and 3PMSF severe snow rated |
| Warranty | 50,000-mile manufacturer’s treadwear limited warranty and standard limited warranty |
| Included Components | Tire only, rims not included |
What Is the BFGoodrich All-Terrain T/A KO3?
The BFGoodrich All-Terrain T/A KO3 is an all-terrain tire line made for drivers who split time between paved roads, gravel, job sites, camping routes, and light to moderate trails. This exact LT275/70R18/E version is a load range E tire with a 3,640-pound load capacity, an 80 psi maximum pressure, and a 125/122S service description.
The KO3 is the newer evolution of the BFGoodrich KO2 line. Its main upgrades focus on tread durability, gravel wear, wet grip, snow traction, and sidewall protection. BFGoodrich uses a new tread pattern, a new all-terrain compound, an optimized footprint, full-depth locking 3D sipes, CoreGard Technology, and Advanced Deflection Design.
For you, those details matter most if your truck carries tools, gear, camping equipment, passengers, or trailer tongue weight. The KO3 is not just an aggressive-looking tire. It is a heavier LT tire built to take more abuse than a basic highway all-season, with clear tradeoffs in weight, ride firmness, and fuel economy.
Who Should Buy It?
Best For
- Full-size pickup and heavy SUV owners who need an LT275/70R18 E-load tire.
- Drivers who see a mix of pavement, gravel, job sites, snow, and light trail access.
- Overland, camping, hunting, ranch, and work-truck users who value sidewall toughness and tread life.
Skip If
- Your truck mostly stays on smooth highways and you care most about quietness and fuel economy.
- You do not need E-load strength and would be better served by a lighter highway-terrain tire.
- You spend most of your time in deep mud or technical rock crawling where a dedicated mud-terrain tire may fit better.
Before You Buy: Confirm the LT275/70R18 size, load range, overall diameter, wheel width, and clearance against your vehicle placard, wheel specs, and installer guidance. A 33.2-inch tire may affect clearance, speedometer reading, ride feel, and fuel use on some setups.
KO3 Tread Design and Durability
The KO3 uses a new all-terrain tread compound and an updated tread pattern designed for long wear on pavement, gravel, dirt, and mixed surfaces. The 16/32-inch tread depth gives the tire a deep starting point, which helps it keep usable edges as miles add up.
BFGoodrich also uses an optimized footprint and full-depth locking 3D sipes. A more even footprint can help reduce irregular wear when your truck moves between empty daily driving, loaded work use, towing, and trail trips. Full-depth sipes help the tire keep biting edges deeper into the tread life instead of only when the tire is new.
This is still a rugged all-terrain tire, not a soft touring tire. At a listed 55 pounds on Amazon for this size, it adds rotating mass compared with many lighter highway-focused tires. That extra weight is part of the tradeoff for LT construction and sidewall strength.
CoreGard Sidewall Protection
CoreGard Technology is one of the KO3’s most important durability features. BFGoodrich ties this sidewall design to its Baja racing background, and the goal is to help the sidewall resist cuts, punctures, scrapes, and splitting.
The Advanced Deflection Design helps push sticks and stones away from the sidewall before they can catch. That is useful on rocky access roads, rutted hunting trails, construction entrances, remote gravel routes, and campsites with sharp debris.
You still need to use correct pressure, load limits, and speed. A stronger sidewall does not make the tire indestructible. It also does not replace proper mounting, routine inspection, or the load and inflation guidance from your vehicle and tire installer.
Mud, Snow, and Loose-Surface Grip
The KO3 carries the 3 Peak Mountain Snowflake symbol, also called 3PMSF. That means it meets severe snow service requirements and gives it stronger winter credibility than an all-terrain tire with only a basic M+S marking.
Its serrated shoulder design and mud-phobic bars are meant to help the tread keep biting when snow, slush, or mud tries to pack into the voids. In real driving, that can help with steering confidence and forward traction on loose surfaces.
It is not a dedicated winter tire. If you drive every day on ice, steep frozen roads, or packed snow, a true winter tire is still the safer choice. The KO3 makes more sense if you need one tire that can handle changing conditions without moving all the way to a snow-only setup.
Road Manners and Highway Comfort
On pavement, the KO3 aims to feel more controlled than a mud-terrain tire while keeping the aggressive tread and reinforced construction you expect from BFGoodrich. The symmetrical tread pattern and optimized footprint help it stay predictable during daily driving.
Road noise is the main compromise. You should expect more tread sound than you would get from a touring or highway-terrain tire, especially as the tire wears. For many truck owners, that tradeoff is acceptable because the KO3 adds gravel grip, sidewall protection, and winter capability.
The E-load casing also gives the tire a firmer feel. That can be helpful when you carry load or tow, but it may feel stiff on a lighter truck or an unloaded daily driver. Tire pressure setup matters, so work with your installer instead of guessing.
Fit, Load Rating, and Compatibility
This KO3 size is best matched to trucks and SUVs that can properly use LT275/70R18 tires on 18-inch wheels. Common shopping examples include some Ford F-150, Chevrolet Silverado 1500, GMC Sierra 1500, Ram 1500, Toyota Tundra, Nissan Titan, and full-size SUV builds, but fitment depends on model year, trim, suspension, wheel offset, and tire clearance.
The 3,640-pound load capacity, load range E rating, and 80 psi maximum pressure are useful for heavier use. They do not mean you should exceed your vehicle’s gross axle weight rating, payload rating, trailer rating, or placard pressure. The tire is only one part of the load system.
Pro Tip: Before installation, ask the shop to check wheel width, offset, full-lock steering clearance, spare tire fit, and road-force balance. Heavier LT all-terrain tires can be more sensitive to balancing than lighter highway tires.
Warranty and Treadwear Coverage
The BFGoodrich All-Terrain T/A KO3 comes with a 50,000-mile manufacturer’s treadwear limited warranty. BFGoodrich also lists a standard limited warranty that covers defects in workmanship and materials for the life of the original usable tread or 6 years from the purchase date, whichever comes first.
That coverage supports the KO3’s position as a long-wearing all-terrain tire rather than a short-life trail tire. Warranty coverage does not mean every driver will see the same mileage. Tire life depends on alignment, inflation, rotation habits, towing, road texture, driving style, and vehicle weight.
For best results, rotate the tires on schedule, check pressure when cold, and inspect the shoulders for early uneven wear. Heavy trucks can wear all-terrain tires quickly when alignment, pressure, or load balance is off.
Setup Tips Before First Use
Have the tires mounted and balanced by a qualified installer. This matters more with an E-load all-terrain tire because the casing, tread depth, and weight can make highway balance issues easier to feel.
After the first few hundred miles, recheck tire pressure, lug torque, and ride feel. Look for vibration, pulling, uneven shoulder wear, or rubbing at full steering lock. If the tire feels rough at highway speed, ask the shop about road-force balancing instead of assuming the tire only needs a standard rebalance.
Use your vehicle placard and installer guidance for pressure. The tire’s 80 psi maximum is not a daily-driving recommendation for every vehicle. Running the wrong pressure can hurt ride quality, traction, wear, and load safety.
How It Performs in Real Use
For Daily Commuting
On normal roads, the KO3 gives you a stable and planted feel. You get firm steering and a durable casing, but the tire feels heavier than a lighter highway-terrain option. The tread sound is reasonable for an all-terrain tire, yet it will not be as quiet as a road-focused touring tire.
For Towing and Payload
The E-load rating and 3,640-pound load capacity make this size a strong match for truck owners who carry gear, tools, camping equipment, or trailer tongue weight. The main benefit is added support under load. The tradeoff is a firmer unloaded ride.
For Gravel, Ranch, and Job-Site Roads
Gravel is where the KO3 makes a lot of sense. The deep tread, all-terrain compound, and CoreGard sidewall design help when loose stone, washboard sections, rough shoulders, and worksite debris are part of your week.
For Snow, Slush, and Winter Travel
The 3PMSF rating gives the KO3 useful snow credibility for an all-terrain tire. Full-depth locking 3D sipes and serrated shoulders help it keep working when the road changes from wet pavement to slush or packed snow. It still should not replace a dedicated winter tire for ice-heavy routes.
Pros and Cons
Pros
- Strong 3,640-pound load capacity supports heavier truck, payload, and towing setups.
- 3PMSF severe snow rating gives it better winter credibility than M+S-only all-terrain tires.
- CoreGard Technology and Advanced Deflection Design add useful sidewall protection for rough roads.
- 16/32-inch tread depth gives the tire a deep starting point for long-term wear.
- 50,000-mile treadwear limited warranty is strong for a rugged all-terrain tire.
Cons
- The 55-pound listed weight can affect acceleration, braking feel, and fuel economy.
- The aggressive all-terrain tread is not as quiet as a dedicated highway tire.
- Careful balancing may be needed because heavier LT all-terrain tires can be sensitive at highway speeds.
Is It Worth the Price?
The KO3 is a premium all-terrain tire, and its value depends on how you drive. You get the most value if you need E-load construction, severe snow capability, a 50,000-mile treadwear warranty, and stronger sidewall protection for rough roads.
It is worth considering if your truck sees daily pavement plus gravel, job sites, snowy access roads, camping routes, or light trail use. It is not the best fit if you only want the quietest commute or the lowest running cost.
Because tire prices change often, this review does not rely on a fixed dollar amount. The better question is whether the KO3’s mix of toughness, winter rating, and daily usability matches your actual driving.
How It Compares to Alternatives
The older BFGoodrich All-Terrain T/A KO2 remains a familiar option, but the KO3 focuses on improved tread wear, wet traction, snow traction, and sidewall strength. If you liked the KO2 but want the newer BFGoodrich all-terrain design, the KO3 is the better fit.
If you want another all-weather all-terrain tire, compare it with the Falken Wildpeak A/T4W or Toyo Open Country A/T III. If you want a more aggressive mud-and-snow look, the Goodyear Wrangler DuraTrac RT is also worth comparing. The KO3 makes the most sense if you want BFGoodrich sidewall toughness with balanced daily usability.
Frequently Asked Questions
Is the KO3 suitable for daily highway commuting?
Yes, the KO3 can work for daily highway commuting if you need an all-terrain LT tire. Expect a firmer ride and more tread sound than a highway tire because this version has E-load construction and 16/32-inch tread depth.
How does the KO3 compare to the KO2 on-road?
The KO3 is the newer evolution of the KO2, with updates aimed at tread wear, wet grip, snow traction, and sidewall strength. On-road, it is still an all-terrain tire, so it will not feel as soft or quiet as a highway-focused touring tire.
What vehicles commonly use LT275/70R18/E tires?
This size is commonly considered for full-size pickups and heavy SUVs with 18-inch wheels. Some shoppers compare it for Ford F-150, Chevrolet Silverado 1500, GMC Sierra 1500, Ram 1500, Toyota Tundra, Nissan Titan, and similar builds, but you should always confirm fitment before ordering.
Does the KO3 have a severe snow rating?
Yes, the KO3 carries the 3PMSF severe snow rating. That helps in winter storms, mountain roads, and mixed wet or snowy conditions, but it does not make the KO3 a replacement for a dedicated winter tire on ice-heavy roads.
Does the KO3 require a special break-in period?
No special break-in period is listed for the KO3. You should still drive carefully for the first few hundred miles, then recheck pressure, lug torque, ride feel, and any signs of rubbing or vibration.
How much road noise does the KO3 produce?
Road noise is moderate for an all-terrain tire. You should expect more sound than a highway tire, especially as the tread wears, but it is built to balance pavement manners with deep tread, sidewall protection, and off-road traction.
Can this tire affect fuel economy?
Yes, it can. The LT construction, deep tread, and listed 55-pound weight can add rolling resistance and rotating mass compared with lighter highway-terrain tires.
What is the biggest buying mistake with this KO3 size?
The biggest mistake is buying the tire for its aggressive look without checking fitment, load needs, clearance, and ride tradeoffs. Make sure the 33.2-inch diameter, LT275/70R18 size, E-load rating, and wheel specs match your vehicle and driving needs.
The Bottom Line
The BFGoodrich All-Terrain T/A KO3 in LT275/70R18/E 125/122S earns an 8.1/10 because it delivers the traits truck and SUV shoppers want from a premium all-terrain tire: load strength, sidewall toughness, deep tread, severe snow rating, and long-wear coverage.
You should buy it if your truck sees real mixed use, including pavement, gravel, snow, job sites, towing, camping roads, and weekend trail access. You should skip it if you want maximum highway quietness, the lightest possible tire, or a dedicated mud-terrain for constant off-road abuse.
