Bridgestone Dueler A/T Ascent 255/55R20 XL Dueler A/T Ascent
Bridgestone

Dueler A/T Ascent

255/55R20 XL
3PMSF
🏷️ Manufacturer rebate available: Bridgestone Get $80 Back
$211.49/tire $281.99
Set of 4: $845.96
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

Size255/55R20 XL Dueler A/T Ascent
Width255 mm
Aspect ratio55
Rim diameterR20
Load index110
Speed ratingH
Load rangeXL
UTQG640 A B
Treadwear warranty60,000 miles
Tread depth12/32"
Weight37 lbs
Max pressure50 psi
Severe snow (3PMSF)Yes
Run-flatNo

About the Bridgestone Dueler A/T Ascent

All-Weather All-Terrain Passenger Light Truck/SUV tire.

Features

* Precision sawtooth edges, staggered shoulder blocks and a traction focused center rib* Engineered with a special compound* Full depth 3D sipe technology* M+S Rated* Carries the Three-Peak Mountain Snowflake (3PMSF) symbol* 60,000 Mile Limited Treadwear Warranty* Platinum Pact Limited Warranty* 90 Day Buy & Try Guarantee

Benefits

* Designed to help provide rugged off-road power with elevated on-road comfort* Helps deliver traction and impressively long tread life* Designed to help deliver the biting edges and tread stability to navigate wet and wintry roads* Meets the required performance criteria for use in severe snow conditions

Understanding the 255/55R20 XL size

In the size code 255/55R20, 255 is the section width in millimetres (about 10"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 140.3 mm. R20 means radial construction on a 20-inch wheel, giving an approximate overall diameter of 31".

The load index 110 means each tire supports up to 2,337 lbs — about 9,348 lbs across a full set of four. The speed symbol H certifies the tire to 130 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 Bridgestone Dueler A/T Ascent is built for

It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test. Fitment category: Undefined.

Tread life and grip ratings

This tire carries a UTQG rating of 640 A B. The treadwear grade of 640 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 $211.49 per tire, a full set of four costs $845.96. That sits close to the average for the 101 tires we stock in this size. Backed by a 60,000-mile treadwear warranty, that works out to roughly $14.10 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 255/55R20 mean?

255 is the section width in millimetres, 55 is the aspect ratio (sidewall height as a percentage of width, about 140.3 mm), and R20 indicates radial construction for a 20-inch wheel. Overall diameter is approximately 31 inches.

What are the load and speed ratings of the Bridgestone Dueler A/T Ascent 255/55R20 XL?

Its load index of 110 allows up to 2,337 lbs per tire. Its speed rating of H is certified to 130 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 Bridgestone Dueler A/T Ascent 255/55R20 XL tires cost?

A single tire is $211.49 and a set of four is $845.96, covered by a 60,000-mile treadwear warranty.

Is the Bridgestone Dueler A/T Ascent rated for snow?

Yes. It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it met a standardised severe snow traction test.

Does the Dueler A/T Ascent come in other sizes?

Yes — we stock 36 additional Dueler A/T Ascent sizes besides 255/55R20 XL. Fit only a size approved for your vehicle.

Other sizes of this model

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