Ecsta Sport PS72
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Specifications
| Size | 235/40R18 XL Ecsta Sport PS72 |
|---|---|
| Width | 235 mm |
| Aspect ratio | 40 |
| Rim diameter | R18 |
| Load index | 95 |
| Speed rating | Y |
| Load range | XL |
| Season | Summer |
|---|---|
| UTQG | 320 AA A |
| Treadwear warranty | 30,000 miles |
| Tread depth | 9.4/32" |
| Weight | 22.2 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Kumho Ecsta Sport PS72
Summer Ultra High Performance Passenger Car tire Ideal for High Horsepower Vehicles, Including EVs.
Features
* Grippy compound* 30,000 Mile Treadwear Limited Warranty* Road Hazard Warranty
Benefits
* To grip the road and deliver heightened levels of performance in handling, stability, cornering and steering response* Help boost water excavation for performance in wet weather
Understanding the 235/40R18 XL size
In the size code 235/40R18, 235 is the section width in millimetres (about 9.3"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 94 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 25.4".
The load index 95 means each tire supports up to 1,521 lbs — about 6,084 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 Kumho Ecsta Sport PS72 is built for
The Kumho Ecsta Sport PS72 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, Performance, UHP.
Tread life and grip ratings
This tire carries a UTQG rating of 320 AA A. The treadwear grade of 320 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 $138.84 per tire, a full set of four costs $555.36. That is about 13% below the average price of the 101 tires we stock in this size. Backed by a 30,000-mile treadwear warranty, that works out to roughly $18.51 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 235/40R18 mean?
235 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 94 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 25.4 inches.
What are the load and speed ratings of the Kumho Ecsta Sport PS72 235/40R18 XL?
Its load index of 95 allows up to 1,521 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 Kumho Ecsta Sport PS72 235/40R18 XL tires cost?
A single tire is $138.84 and a set of four is $555.36, covered by a 30,000-mile treadwear warranty.
Can the Kumho Ecsta Sport PS72 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 Ecsta Sport PS72 come in other sizes?
Yes — we stock 34 additional Ecsta Sport PS72 sizes besides 235/40R18 XL. Fit only a size approved for your vehicle.