Ecsta Sport S PS72S
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Specifications
| Size | 285/30R21 XL Ecsta Sport S PS72S |
|---|---|
| Width | 285 mm |
| Aspect ratio | 30 |
| Rim diameter | R21 |
| Load index | 100 |
| Speed rating | (Y) |
| Load range | XL |
| Season | Summer |
|---|---|
| UTQG | 260 AA A |
| Treadwear warranty | 30,000 miles |
| Tread depth | 9/32" |
| Weight | 29.1 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Kumho Ecsta Sport S PS72S
Summer Max Performance Passenger Car tire.
Features
* Enhanced compound and tread design* 30,000 Mile Limited Treadwear Warranty* Road Hazard Warranty* 30-Day Satisfaction Guaranteed Trial 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 285/30R21 XL size
In the size code 285/30R21, 285 is the section width in millimetres (about 11.2"). 30 is the aspect ratio — the sidewall height is 30% of the width, or roughly 85.5 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 27.7".
The load index 100 means each tire supports up to 1,764 lbs — about 7,056 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 S PS72S is built for
The Kumho Ecsta Sport S PS72S 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.
Tread life and grip ratings
This tire carries a UTQG rating of 260 AA A. The treadwear grade of 260 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 $277.68 per tire, a full set of four costs $1110.72. That is about 27% below the average price of the 8 tires we stock in this size. Backed by a 30,000-mile treadwear warranty, that works out to roughly $37.02 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 285/30R21 mean?
285 is the section width in millimetres, 30 is the aspect ratio (sidewall height as a percentage of width, about 85.5 mm), and R21 indicates radial construction for a 21-inch wheel. Overall diameter is approximately 27.7 inches.
What are the load and speed ratings of the Kumho Ecsta Sport S PS72S 285/30R21 XL?
Its load index of 100 allows up to 1,764 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 S PS72S 285/30R21 XL tires cost?
A single tire is $277.68 and a set of four is $1110.72, covered by a 30,000-mile treadwear warranty.
Can the Kumho Ecsta Sport S PS72S 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 S PS72S come in other sizes?
Yes — we stock 48 additional Ecsta Sport S PS72S sizes besides 285/30R21 XL. Fit only a size approved for your vehicle.