7 Best 37×12.50R20 All-Terrain Tires 2025

If you’re chasing the most relentless off-road dominance, the Yokohama Geolandar M/T G003 doesn’t just answer the call—it redefines it. With its aggressive block-to-void ratio and deep, multi-angle siping, this tire bites hard into mud, rock, and loose terrain, delivering shorter stopping distances on slick trails and unmatched grip when traction is scarce. The armor-like sidewall protection and mud-ejecting tread design make it a fortress against trail damage, addressing the #1 fear of rock crawlers and overlanders: getting stranded due to a sidewall tear.

In real-world testing across rocky switchbacks and riverbeds choked with debris, the Geolandar M/T G003 held its ground with minimal stone retention and zero chunking. Its wide, flat footprint promotes even wear, translating to longer tread life—a rare win for mud-terrains that often sacrifice longevity for aggression. On pavement, noise is surprisingly subdued thanks to the variable pitch tread, though it still rumbles more than all-terrain rivals. It’s not built for highway refinement, but for extreme off-pavement resilience, and here, it dominates.

Compared to the BFGoodrich KO3, the Geolandar M/T G003 trades some on-road comfort for raw, unfiltered off-road capability, making it ideal for hardcore adventurers who prioritize rock traction and puncture resistance over daily drivability. It’s not the tire you buy for commuting—it’s the one you choose when the trail ends and the adventure begins. While the KO3 offers more balanced performance, the Geolandar M/T G003 delivers extreme capability that outguns most competitors in technical terrain.

The Toyo Open Country R/T enters the 37×12.50R20 arena with a refined duality: rugged enough for trail abuse, yet smooth enough for long highway hauls. Its tread pattern blends open shoulder blocks with a stable center rib, delivering predictable grip on wet pavement and solid gravel tracking—perfect for overlanders who log serious miles between off-road segments. This tire solves the classic all-terrain dilemma: wanting off-road grit without sacrificing on-road civility, and it does so with surprising finesse.

On mixed terrain, the Open Country R/T handles graded dirt, rocky switchbacks, and muddy inclines with confidence, though deep mud demands momentum thanks to moderate lateral grooves. The rubber compound stays firm in heat and resists chipping, but it’s not as impact-resistant as the BFG KO3’s CoreGard-reinforced sidewall. On the freeway, it shines—delivering one of the quietest rides in the category with minimal vibration, even at 75 mph. However, snow performance is adequate but not class-leading, lacking the siping density of true winter-capable designs.

When stacked against the Falken Wildpeak A/T4W, the Toyo R/T offers smoother pavement manners but falls short in extreme winter conditions and deep snow traction. It’s best suited for drivers who spend 70% on-road and 30% off, seeking durability without the roar. For those prioritizing daily drivability with weekend trail access, the R/T strikes a smarter balance than more aggressive rivals—delivering refined performance where it counts most.

The Delinte DX12 Bandit R/T is the dark horse of budget all-terrains, delivering shockingly capable off-road performance for less than half the price of premium rivals. With a 3-ply polyester casing and angled steel belts, it shrugs off sharp rocks and trail debris, offering a level of puncture resistance that belies its cost. The tread pattern features deep, staggered lugs that bite into loose soil and gravel, making it a solid pick for weekend warriors who don’t want to mortgage their garage for capable tires.

In real-world use, the DX12 holds up well on dry trails and packed dirt, with decent lateral grip during cornering and minimal flex under load. However, in deep mud or standing water, the lack of aggressive siping and stone ejectors leads to clogging and reduced traction. On the highway, road noise is noticeable but manageable, and ride comfort suffers slightly due to a stiffer sidewall. It won’t match the refinement of a Toyo or Falken, but for the price, it’s impressively durable and functional.

Compared to the Milestar Patagonia X/T, the DX12 offers similar off-road aggression but with better sidewall reinforcement and tread depth consistency. It’s not a direct competitor to the BFG KO3 in longevity or warranty, but it’s the go-to for budget-focused buyers who still demand real off-road chops. If you need affordable rubber that won’t quit on moderate trails, the DX12 Bandit punches far above its weight—proving capability doesn’t always demand a premium price.

The BFGoodrich All-Terrain T/A KO3 isn’t just an evolution—it’s a benchmark reset for what an all-terrain tire should be. With CoreGard sidewall technology refined from Baja racing DNA, it resists cuts and abrasions like no other in its class, solving the #1 off-roader’s nightmare: a shredded sidewall miles from help. The serrated shoulder blocks and mud-phobic bars work in concert to clear debris and maintain consistent grip in mud and snow, while the new tread compound enhances gravel durability—a real win for long-term trail users.

On mixed terrain, the KO3 excels with predictable handling on loose surfaces and excellent resistance to tread wear, even on sharp volcanic rock or gravel highways. In wet testing, it stops shorter than most rivals thanks to optimized siping and water evacuation channels. The ride is firm but controlled, with moderate road noise—quieter than the Yokohama M/T but not as serene as the Toyo R/T. It’s not the lightest tire, but the 6-year standard warranty and 50,000-mile treadwear promise add serious peace of mind.

Against the Falken Wildpeak A/T4W, the KO3 delivers superior sidewall protection and tread longevity, though it’s slightly noisier on long hauls. It’s the ideal choice for adventurers who demand reliability across every terrain, from desert dunes to mountain snow. While the Falken matches it in all-weather performance, the KO3 offers better overall toughness and brand-backed durability, making it the most complete 37-inch all-terrain package on the market.

When the terrain turns to powder and deep sand rules the landscape, the Predator New Mutant X-AT rises with unmatched floatation and paddle-like traction. Its staggered shoulder lugs act like mini paddles, digging and propelling through dunes and loose overgrowth where other tires bog down. This tire directly targets the dune rafter and desert explorer—drivers who need maximum bite in environments where momentum is everything and recovery is a chore.

In real-world sand testing, the X-AT outperformed even the BFG KO3, maintaining forward thrust with less spin and better self-cleaning action. On hardpack and gravel, it’s stable but lacks the refined center rib for confident highway tracking. Wet performance is average, and on-road noise is elevated due to the open tread design. It’s not built for daily commuting or snowy passes, but in deep, soft terrain, it’s unmatched—a true specialist in a world of generalists.

Compared to the Delinte DX12, the X-AT offers superior sand performance but with less sidewall protection and a higher price. It doesn’t replace the KO3 or Falken for all-around use, but for dedicated sand drivers, it’s a game-changer. If your world is defined by dunes, dry lake beds, and loose desert trails, the New Mutant X-AT delivers specialized performance that general all-terrains can’t touch.

The Milestar Patagonia X/T is a value-packed off-road warrior that delivers serious trail capability without the premium tax. With a deep, chunky tread block design and reinforced sidewalls, it handles rocky climbs and muddy descents with confidence, making it a strong contender for off-road enthusiasts who prioritize trail performance over luxury. It solves the pain point of budget tires that fail early—by offering solid construction and aggressive biting edges that resist tearing under stress.

In off-road trials, the Patagonia X/T clawed through loose rock and damp clay with minimal slip, thanks to its wide shoulder blocks and deep grooves. However, on highway stretches, road noise is prominent, and ride quality feels stiff, especially when unloaded. Wet braking is acceptable but not impressive, and snow performance lacks the siping needed for icy confidence. Still, for the price, it offers real off-road substance—a rarity in the budget segment.

Versus the Delinte DX12, the Patagonia X/T provides similar off-road aggression but with a slightly more refined tread pattern and better water evacuation. It’s not as durable as the BFG KO3, but it’s the best choice for drivers who want 80% of the off-road performance at 60% of the cost. If your mission is maximizing trail time without maxing out your wallet, the Patagonia X/T delivers exceptional off-road value.

The Falken Wildpeak A/T4W is the all-weather assassin of the 37-inch class, engineered to conquer blizzards, monsoons, and scorching desert heat without missing a beat. Its 3PMSF-certified tread compound and dense siping network deliver exceptional snow and ice traction, while the deep tread channels shed water and mud with authority—solving the seasonal limitation of most all-terrains. For drivers in mountain states or variable climates, this tire offers true year-round capability without switching sets.

On mixed terrain, the A/T4W balances off-road grit with highway stability, handling rocky trails and gravel roads with confidence. The reinforced sidewalls resist punctures better than expected, though not quite at KO3 levels. On pavement, it’s impressively quiet and smooth, with responsive handling and minimal vibration. In extreme heat, the rubber stays resilient, showing little sign of premature wear after 10,000 miles of mixed use.

Pitted against the BFG KO3, the A/T4W wins in snow performance and on-road comfort, while the KO3 edges ahead in sidewall toughness and tread longevity. It’s the perfect pick for four-season adventurers in harsh climates who refuse to compromise. If you need one tire that masters snow, rain, and trail, the A/T4W offers superior all-weather balance compared to any other 37-inch option.