Toyo Open Country R/T 305/55R20 Open Country R/T
Toyo

Open Country R/T

305/55R20
All-Season M+S
$332.25/tire $443.00
Set of 4: $1329.00
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size305/55R20 Open Country R/T
Width305 mm
Aspect ratio55
Rim diameterR20
Load index116
Speed ratingQ
Load rangeSL
SeasonAll-Season
UTQG500 A B
Treadwear warranty45,000 miles
Tread depth13.5/32"
Weight52 lbs
Max pressure44 psi
Severe snow (3PMSF)No
Run-flatNo

About the Toyo Open Country R/T

All-Season Rugged-Terrain Passenger Light Truck/SUV tire. A Hybrid Design Combining the Extreme Off-Road Traction of a Mud-Terrain tire with the On-Road Traction and Comfort of an All-Terrain tire. Dual Sidewall Designs allow for Customization.

Features

* Wide shoulder grooves* Scalloped shoulder lugs* High turn-up, 3-ply polyester casing* Optimized pattern arrangement* Aggressive sidewall designs with durable sidewall compound* Stone and mud ejectors* M+S Rated* 45,000 Mile Limited Treadwear Warranty* 500 Mile Trial Offer

Benefits

* Contributes to excellent off-road traction* Prevents mud and snow buildup* Improves off-road traction by biting into the ground* Strengthens tire for excellent handling and durability, while maintaining proper load capacity* Increases tread life* Reduces noise for improved driving comfort* Protects against side impacts and has excellent cut resistance* Offers customization with two distinct looks* Removes stones and mud from grooves

Understanding the 305/55R20 size

In the size code 305/55R20, 305 is the section width in millimetres (about 12"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 167.8 mm. R20 means radial construction on a 20-inch wheel, giving an approximate overall diameter of 33.2".

The load index 116 means each tire supports up to 2,756 lbs — about 11,024 lbs across a full set of four. The speed symbol Q certifies the tire to 99 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

What the Toyo Open Country R/T is built for

The Toyo Open Country R/T is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. It is classified for rugged-terrain (r/t) (m/t & r/t - mainly lt specific) use.

Tread life and grip ratings

This tire carries a UTQG rating of 500 A B. The treadwear grade of 500 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade A measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade B reflects heat resistance at sustained speed (A is highest).

Price and value

At $332.25 per tire, a full set of four costs $1329.00. That sits close to the average for the 62 tires we stock in this size. Backed by a 45,000-mile treadwear warranty, that works out to roughly $29.53 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 305/55R20 mean?

305 is the section width in millimetres, 55 is the aspect ratio (sidewall height as a percentage of width, about 167.8 mm), and R20 indicates radial construction for a 20-inch wheel. Overall diameter is approximately 33.2 inches.

What are the load and speed ratings of the Toyo Open Country R/T 305/55R20?

Its load index of 116 allows up to 2,756 lbs per tire. Its speed rating of Q is certified to 99 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.

How much does a set of 4 Toyo Open Country R/T 305/55R20 tires cost?

A single tire is $332.25 and a set of four is $1329.00, covered by a 45,000-mile treadwear warranty.

Does the Open Country R/T come in other sizes?

Yes — we stock 60 additional Open Country R/T sizes besides 305/55R20. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 305/55R20

Nexen Roadian ATX LT305/55R20 F Roadian ATX
Nexen
Roadian ATX
LT305/55R20 F
3PMSF
$311.25/tire
$1245.00 set of 4