Extremecontact DWS06 Plus
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Specifications
| Size | 255/40ZR21 XL Extremecontact DWS06 Plus |
|---|---|
| Width | 255 mm |
| Aspect ratio | 40 |
| Rim diameter | R21 |
| Load index | 102 |
| Speed rating | Y |
| Load range | XL |
| Season | All-Season |
|---|---|
| UTQG | 560 AA A |
| Treadwear warranty | 50,000 miles |
| Tread depth | 10/32" |
| Weight | 27 lbs |
| Max pressure | 51 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Continental Extremecontact DWS06 Plus
All-Season Ultra High Performance tire for Passenger Car, Crossover and SUV.
Features
* SportPlus Technology* QuickView Indicators* 50,000 Mile Limited Treadwear Warranty* 60 Day Customer Satisfaction Trial (with purchase of 4 tires)* 12 Month Road Hazard Coverage* Three Year Flat Tire Roadside Assistance
Benefits
* Improves tread life and provides precise handling while enhancing grip on wet roads* Visually inform driver to the level tires are performing in dry, wet and snow as well as the need to check vehicles alignment
Understanding the 255/40ZR21 XL size
In the size code 255/40R21, 255 is the section width in millimetres (about 10"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 102 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 29".
The load index 102 means each tire supports up to 1,874 lbs — about 7,496 lbs across a full set of four. The speed symbol Y certifies the tire to 186 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 Continental Extremecontact DWS06 Plus is built for
The Continental Extremecontact DWS06 Plus 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. Fitment category: Passenger Car, CAR, SUV/CUV, Performance, UHP.
Tread life and grip ratings
This tire carries a UTQG rating of 560 AA A. The treadwear grade of 560 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 AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).
Price and value
At $293.99 per tire, a full set of four costs $1175.96. That is about 10% below the average price of the 56 tires we stock in this size. Backed by a 50,000-mile treadwear warranty, that works out to roughly $23.52 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 255/40R21 mean?
255 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 102 mm), and R21 indicates radial construction for a 21-inch wheel. Overall diameter is approximately 29 inches.
What are the load and speed ratings of the Continental Extremecontact DWS06 Plus 255/40ZR21 XL?
Its load index of 102 allows up to 1,874 lbs per tire. Its speed rating of Y is certified to 186 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 Continental Extremecontact DWS06 Plus 255/40ZR21 XL tires cost?
A single tire is $293.99 and a set of four is $1175.96, covered by a 50,000-mile treadwear warranty.
Does the Extremecontact DWS06 Plus come in other sizes?
Yes — we stock 118 additional Extremecontact DWS06 Plus sizes besides 255/40ZR21 XL. Fit only a size approved for your vehicle.