Proxes Sport A/S
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Specifications
| Size | 275/40R18 Proxes Sport A/S |
|---|---|
| Width | 275 mm |
| Aspect ratio | 40 |
| Rim diameter | R18 |
| Load index | 99 |
| Speed rating | Y |
| Load range | SL |
| Season | All-Season |
|---|---|
| UTQG | 440 AA A |
| Treadwear warranty | 40,000 miles |
| Tread depth | 9.7/32" |
| Weight | 31 lbs |
| Max pressure | 51 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Toyo Proxes Sport A/S
All-Season Ultra-High Performance Passenger Car Tire.
Features
* Optimized asymmetric tread design* New tread compound* Multi-wave sipes* Select High Load (HL) capacity sizes* M+S Rated* 50,000 Mile Treadwear Warranty
Benefits
* High stiffness outer rib provides stability for enhanced cornering performance* High sipe density inner ribs improve braking on wet and dry roads while offering competitive light snow traction* Minimize irregular wear for a quiet ride throughout the life of the tire* Improve wet and dry performance* Enable additional electric, hybrid, and plus fitment opportunities and OEM fitments
Understanding the 275/40R18 size
In the size code 275/40R18, 275 is the section width in millimetres (about 10.8"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 110 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 26.7".
The load index 99 means each tire supports up to 1,709 lbs — about 6,836 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 Toyo Proxes Sport A/S is built for
The Toyo Proxes Sport A/S 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, Performance, UHP.
Tread life and grip ratings
This tire carries a UTQG rating of 440 AA A. The treadwear grade of 440 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 $176.77 per tire, a full set of four costs $707.08. That is about 27% below the average price of the 51 tires we stock in this size. Backed by a 40,000-mile treadwear warranty, that works out to roughly $17.68 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 275/40R18 mean?
275 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 110 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 26.7 inches.
What are the load and speed ratings of the Toyo Proxes Sport A/S 275/40R18?
Its load index of 99 allows up to 1,709 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 Toyo Proxes Sport A/S 275/40R18 tires cost?
A single tire is $176.77 and a set of four is $707.08, covered by a 40,000-mile treadwear warranty.
Does the Proxes Sport A/S come in other sizes?
Yes — we stock 150 additional Proxes Sport A/S sizes besides 275/40R18. Fit only a size approved for your vehicle.