Bfgoodrich KM2 vs KM3

Mileage Warranty

Durability is a big deal when you’re investing in tires built for punishment. The KM3 comes with a compelling 50,000-mile warranty, a clear signal of BFGoodrich’s confidence in its staying power.

In contrast, the KM2 offers a 6-year standard limited warranty, which lacks a specific mileage figure. While both provide solid assurance, the KM3’s mileage promise gives it an edge for those planning long-term adventures.

It’s a practical perk that suggests you’ll spend more time exploring and less time shopping for replacements.

Value Meets Performance

Cost often sways decisions, and here’s where things get interesting. For a popular size like LT265/70R17, the KM3 retails at around $306, while the KM2 commands a higher $339.

At first glance, the newer model being cheaper might raise eyebrows, but it likely reflects the KM2’s phasing-out status and lingering stock prices.

For budget-conscious buyers, the KM3 delivers upgraded features without breaking the bank—a win-win that’s hard to ignore.

Tire Type

Both the KM2 and KM3 are mud terrain tires, crafted to thrive where pavement ends. They’re designed for trucks, Jeeps, and SUVs that crave dirt, mud, and rocks over smooth highways. This shared DNA means you’re getting serious off-road capability either way.

However, the KM3’s newer engineering hints at refinements we’ll explore further, while the KM2 holds its own as a proven classic. No matter your choice, expect a tire that laughs in the face of tame roads.

Rim Range

Finding the right size is crucial, and the KM3 shines with a broad range of rim diameters, typically spanning 15 to 22 inches. This versatility accommodates a wide array of vehicles, from compact off-roaders to beefy overlanders.

The KM2, however, appears more limited—listings often highlight sizes like LT255/75R17/C, with fewer options readily available.

This could stem from its older design being gradually discontinued. If your rig demands a specific fit, the KM3’s wider selection might tip the scales.

Tread Pattern

Tread design is where these tires reveal their true character. The KM2 sports a rugged pattern with linear flex zones, optimized for gripping tough surfaces like rocks and mud. It’s a battle-tested layout that earned its stripes over years of real-world thrashing.

Enter the KM3, and you’ll notice a leap forward: its Terrain-Attack tread features Mud-Phobic bars that shed muck more effectively, paired with aggressive sidewall lugs for extra bite.

This isn’t just cosmetic—the KM3’s tread is engineered to outmaneuver its predecessor in the sloppiest conditions.

Off-Road Performance

Here’s where the rubber meets the dirt—literally. The KM2 has long been a go-to for off-roaders, delivering reliable traction across mud, rocks, and sand. But the KM3 raises the bar.

BFGoodrich claims it offers 5% better mud traction and 8% better rock traction than the KM2, thanks to its advanced tread and tougher sidewalls. Real-world tests, like those from Off-Road.com, back this up, praising the KM3’s ability to claw through obstacles that might stall lesser tires. For serious off-roaders, this edge could mean the difference between forging ahead and calling for a tow.

On-Road Performance

Mud terrain tires aren’t known for their highway manners, but both the KM2 and KM3 manage to hold their own. The KM2 is functional on pavement, though its aggressive tread can get noisy at speed—a fair trade-off for its off-road prowess.

The KM3, however, surprises with a quieter, smoother ride, as noted in reviews like 4 Wheels and a Motor. Its refined design reduces road hum and improves comfort, making it a more versatile companion for mixed driving. If you split time between trails and tarmac, the KM3 offers a noticeable upgrade.

Expert Opinion

The off-road community and tire experts have weighed in, and the consensus leans toward the KM3. MotorTrend hailed its debut as a “worthy successor,” citing improved durability and traction.

Forums and reviews, such as those on Anthem Off-Road, echo this, often calling the KM3 a refinement of everything the KM2 did well.

That said, the KM2 still has its fans—some swear by its proven track record and classic feel. Experts agree both are top-tier, but the KM3’s advancements give it a modern advantage.

Our Observation

So, where does this leave you? If you’re chasing the latest and greatest, the KM3 stands out as the smarter pick. Its 50,000-mile warranty, lower price at $306, and superior off-road performance—5% better in mud, 8% better on rocks—make it a compelling upgrade.

Add in a quieter on-road experience and a wider size range (15″ to 22″), and it’s clear BFGoodrich poured serious innovation into this tire. It’s ideal for adventurers who demand peak performance and long-term value.

That said, the KM2 isn’t down for the count. Priced at $339, it’s still a rugged, reliable choice with a legacy of tackling the toughest trails.

If you can snag it in your size (admittedly trickier with its limited range) and don’t mind a bit more road noise, it’s a solid option—especially for purists who trust the original. However, its shorter warranty and higher cost make it less practical unless nostalgia or availability sways you.

Ultimately, the KM3 feels like the future, blending cutting-edge tech with real-world grit. For most drivers, it’s the better bet, offering more bang for your buck and a ride that’s ready for anything. Still, your specific needs—budget, vehicle fit, and driving style—should steer the final call.