Arroyo Tamarock A/T

Arroyo Tamarock A/T 285/55R20

4.8(257 store reviews)
$251.85 each
$1,007.40 set
or 4 interest-free payments of $251.85 Shop Pay Klarna Afterpay interest-free when paid on time
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Category
All-Terrain Light Truck
Tread warranty
50,000 miManufacturer limited
Load index
1223,307 lbs per tire
Speed rating
SUp to 112 mph
Know your tire

About the Arroyo Tamarock A/T

Trail-Ready Toughness, Road-Worthy Confidence

Best forJeep, SUV, and light-truck drivers who regularly mix highway commuting with off-road excursions in dry, wet, or light winter conditions.

The Arroyo Tamarock A/T is a light-truck all-terrain tire built for Jeeps, SUVs, and pickups that split time between paved roads and the trail. It delivers confident grip in dry, wet, and light winter conditions, backed by a 50,000-mile tread life warranty and a construction focused on durability and consistent on- and off-road performance.

A symmetrical tread pattern combines an aggressive block layout with wide, angled grooves that actively channel water, mud, slush, and debris away from the contact patch, protecting the casing and maintaining grip. Staggered tread blocks improve bite across varied surfaces, while a multi-angle sipe design works to reduce pattern noise and add traction on light snow. A reinforced inner casing resists cuts, impacts, and deformation for long-term durability.

The numbers

Specifications

Size & Dimensions
Brand Arroyo
Tire Model Tamarock A/T
Part Number ATAT015
Tire Size 285/55R20
Section Width 285
Aspect Ratio 55
Rim Diameter 20
Overall Diameter 32.30
Overall Width 11.2
Sidewall Black Side Wall
Performance
Speed Rating S
Load Index 122
Load Range E
Ratings
Mileage Warranty Manufacturer's Warranty
Category
Tire Type All Terrain
Good to know

Questions about this tire

What does 285/55R20 122S mean?

285 is the tread width in millimeters, 55 means the sidewall is 55% of that width, and R20 is the 20-inch rim it mounts on. 122 is the load index (3,307 lbs per tire), and S is the speed rating (up to 112 mph).

What vehicles can use the Arroyo Tamarock A/T?

The Tamarock A/T is engineered for Jeeps, light trucks, and SUVs. With 30 sizes covering 15- to 22-inch rim diameters, it fits a broad range of popular trucks and off-road-capable vehicles. Check the fitment guide to confirm the right size for your specific year, make, and model.

How does the Tamarock A/T perform off-road?

The tire's aggressive block layout and wide, angled grooves are designed to push mud, rocks, dirt, and water out from under the tread, maintaining contact and protecting the casing on rough terrain. The reinforced construction also resists the cuts and impacts common in off-road use. It is a capable choice for mixed on- and off-road driving, though purpose-built mud-terrain tires will outperform it in extreme conditions like deep mud or rock crawling.

Is the Tamarock A/T good in snow and winter weather?

The multi-angle sipe design gives the Tamarock A/T useful grip on light snow and in cold, wet conditions. However, this tire does not carry the Three-Peak Mountain Snowflake (3PMSF) certification, meaning it is not rated for severe winter service. Drivers in regions with persistent heavy snow, ice, or temperatures that consistently stay below 45°F should consider a dedicated winter tire instead.

Will the Tamarock A/T be noisy on the highway?

All-terrain tires are inherently louder than standard highway or touring tires due to their larger, more open tread blocks. Arroyo addresses this with a multi-angle sipe design intended to break up tread pattern noise. The result is a quieter ride than many all-terrain competitors, though some road noise is normal for the category.

How long will the Arroyo Tamarock A/T last?

Arroyo backs the Tamarock A/T with a 50,000-mile limited manufacturer tread life warranty. Achieving that mileage depends on proper inflation, regular rotation, and alignment maintenance. Following recommended service intervals gives you the best chance of reaching the full warranty mileage.

The brand

About Arroyo Wheels

Arroyo is a wheels brand focused on delivering affordable aftermarket options for passenger cars, trucks, and SUVs. The brand is positioned in the value segment of the wheel market, offering styles that follow mainstream design trends without a premium price point.

Shop all Arroyo tires →

Vehicle Compatibility

Buying from TFS Wheels

Shipping, returns & guarantees

Authorized Dealer — 100% Brand New Wheels & Tires

TFS Wheels is an authorized dealer for every brand we carry. Every wheel and tire we ship is brand new, unused, and packaged in its original manufacturer's box. We never sell refurbished, demo, or return-stock product. All manufacturer warranties apply and our warehouse is staffed by people who only handle wheels and tires — no in-transit damage, no test-fits, no surprises.

Free Shipping (Lower 48)

Free shipping on every order — wheels, tires, and accessories — to the contiguous United States. No minimum order, no hidden fees.

Standard delivery is 4–7 business days; expedited is 1–4 business days. Orders placed before 1:00 PM ET typically ship the same day. We do not ship internationally or to PO boxes.

Fitment Guarantee

If a wheel or tire marked "Direct Fit" or "Aftermarket Fit" for your vehicle arrives and does not fit as expected, we cover both the restocking fee and return shipping. The same applies if the bolt pattern does not match — provided your vehicle information was submitted at checkout.

To qualify for the guarantee, enter your year, make, model, and submodel before placing the order.

Manufacturer's Warranty

Every wheel and tire is covered by the full manufacturer's warranty against defects in materials and workmanship. Coverage terms vary by brand — most cover structural integrity for the life of the wheel and finish for 1 to 2 years from purchase. If you ever have a warranty question, contact us first; we work directly with the manufacturer on your behalf so you don't have to.

Accessories Included with Your Order

When you submit your vehicle information at checkout, the right lug nuts and (if needed) hub-centric rings are automatically added to your cart in the correct sizes — no guessing, no separate ordering.

TPMS sensors are also available in the cart. We program each sensor to your vehicle's exact year, make, model, and submodel before shipping, so they arrive ready to sync with your truck or car the moment they're installed. This typically saves customers the dealer or installer's programming fees, which often run several dozen dollars per wheel.

Returns

Returns are accepted within 30 days of purchase on items in new, unused condition. A 25% restocking fee applies to general (change-of-mind) returns, and the buyer covers return shipping.

The restocking fee and return shipping are waived for incorrect items, transit damage, or fitment issues when vehicle information was provided at checkout. Single wheels, single tires, mounted items, special orders, and accessories (lug nuts, locks, hub-centric rings, TPMS sensors, installation kits) are final sale.

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What Happens After You Order

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