Dueler A/T Ascent
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Specifications
| Size | 275/55R20 Dueler A/T Ascent |
|---|---|
| Width | 275 mm |
| Aspect ratio | 55 |
| Rim diameter | R20 |
| Load index | 113 |
| Speed rating | T |
| Load range | SL |
| UTQG | 640 A B |
|---|---|
| Treadwear warranty | 60,000 miles |
| Tread depth | 12/32" |
| Weight | 41.5 lbs |
| Max pressure | 44 psi |
| Severe snow (3PMSF) | Yes |
| Run-flat | No |
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 275/55R20 size
In the size code 275/55R20, 275 is the section width in millimetres (about 10.8"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 151.3 mm. R20 means radial construction on a 20-inch wheel, giving an approximate overall diameter of 31.9".
The load index 113 means each tire supports up to 2,535 lbs — about 10,140 lbs across a full set of four. The speed symbol T certifies the tire to 118 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 $224.24 per tire, a full set of four costs $896.96. That is about 11% above the average of the 156 tires we stock in this size, reflecting its position in the range. Backed by a 60,000-mile treadwear warranty, that works out to roughly $14.95 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 275/55R20 mean?
275 is the section width in millimetres, 55 is the aspect ratio (sidewall height as a percentage of width, about 151.3 mm), and R20 indicates radial construction for a 20-inch wheel. Overall diameter is approximately 31.9 inches.
What are the load and speed ratings of the Bridgestone Dueler A/T Ascent 275/55R20?
Its load index of 113 allows up to 2,535 lbs per tire. Its speed rating of T is certified to 118 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 275/55R20 tires cost?
A single tire is $224.24 and a set of four is $896.96, 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 275/55R20. Fit only a size approved for your vehicle.