Toyo
Proxes Sport R
255/40ZR17 XL
Summer
$212.20/tire
$282.93
Set of 4: $848.80
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Specifications
| Size | 255/40ZR17 XL Proxes Sport R |
|---|---|
| Width | 255 mm |
| Aspect ratio | 40 |
| Rim diameter | R17 |
| Load index | 98 |
| Speed rating | W |
| Load range | XL |
| Season | Summer |
|---|---|
| UTQG | 200 A A |
| Tread depth | 7.2/32" |
| Weight | 25.4 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Toyo Proxes Sport R
Summer Extreme Performance Car tire Engineered for Autocross, Time Attack, Endurance Racing and HPDE Enthusiasts and Racers.
Features
* High grip compound* Reinforced casing with a jointless cap ply* Directional tread pattern with large shoulder blocks* UTQG - 200 A A* Meets the 7/32nds tread depth specification for competitive racing class requirements
Benefits
* Quickly reaches optimal operating temperature* Maintains consistency throughout its wear life* Provides traction in wet and dry conditions* Provides tread surface rigidity for responsive handling* Wears long and evenly* Maximizes road contact with a long contact patch* Enhances braking and traction performance* Improves cornering with high entry stability and exit traction
Understanding the 255/40ZR17 XL size
In the size code 255/40R17, 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. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 25".
The load index 98 means each tire supports up to 1,653 lbs — about 6,612 lbs across a full set of four. The speed symbol W certifies the tire to 168 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 Proxes Sport R is built for
The Toyo Proxes Sport R is a summer tire, tuned for maximum dry and wet grip in warm conditions; it is not intended for near-freezing temperatures. Fitment category: Passenger Car, CAR, Competition/Racing, Performance, UHP.
Tread life and grip ratings
This tire carries a UTQG rating of 200 A A. The treadwear grade of 200 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 A reflects heat resistance at sustained speed (A is highest).
Price and value
At $212.20 per tire, a full set of four costs $848.80. That is about 24% above the average of the 33 tires we stock in this size, reflecting its position in the range.
Frequently asked questions
What does the tire size 255/40R17 mean?
255 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 102 mm), and R17 indicates radial construction for a 17-inch wheel. Overall diameter is approximately 25 inches.
What are the load and speed ratings of the Toyo Proxes Sport R 255/40ZR17 XL?
Its load index of 98 allows up to 1,653 lbs per tire. Its speed rating of W is certified to 168 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 Proxes Sport R 255/40ZR17 XL tires cost?
A single tire is $212.20 and a set of four is $848.80.
Can the Toyo Proxes Sport R be used in winter?
No. This is a summer tire and it is not rated for severe snow service. Its compound stiffens as temperatures approach freezing, so fit winter or all-weather tires for cold-season driving.
Does the Proxes Sport R come in other sizes?
Yes — we stock 11 additional Proxes Sport R sizes besides 255/40ZR17 XL. Fit only a size approved for your vehicle.
