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Kumho ECSTA PS31 245/40ZR17 91W
You're viewing new Kumho Ecsta PS31 Tire | 245/40ZR17 | SL | Manufacturer Part No 2268623.
Kumho Ecsta PS31 Ultra-High-Performance Summer Tire
Meet the Kumho Ecsta PS31, an ultra-high-performance summer tire tuned for sharp turn-in, stable cornering, and confident wet braking. Its directional tread channels water quickly, and a solid center rib keeps steering feel crisp at highway speeds. The PS31 suits drivers who want real performance they can use every day, lively on on-ramps, composed under hard stops, and comfortable enough for long commutes. If you're moving up from standard all-season tires and want warm-weather grip without overspending, the Ecsta PS31 is a smart place to start.
Key Features and Technology
Designed as a summer-only ultra-high-performance tire, the Ecsta PS31 pairs a silica-rich compound with a directional tread to boost warm-weather grip. A continuous center rib supports straight-line stability and precise steering, and broad shoulder blocks add confidence during quick transitions. Wide circumferential grooves and lateral channels move water away to help resist hydroplaning, while the casing tunes for day-to-day comfort without muting road feel. It fits sport compacts, sedans, and coupes that need predictable handling and strong value.
Dry Road Performance
On dry pavement, the Ecsta PS31 delivers direct steering and stable cornering. The firm center rib limits tread squirm for clean inputs, and reinforced shoulder blocks provide lateral grip when you load the outside edge in a turn. Its summer-focused compound stays compliant in heat, which supports confident braking and consistent stopping distances. For everyday spirited driving, from merging and passing to weekend back roads, the PS31 feels engaging without turning harsh, a practical step up from touring-biased tires in warm weather.
Wet Performance and Hydroplaning Resistance
Rainy commutes demand strong water evacuation. The Ecsta PS31's directional tread and wide circumferential grooves move water away from the contact patch to reduce hydroplaning at speed. Lateral notches add extra escape paths under throttle and braking, so traction stays predictable on damp and wet roads. The summer compound is tuned for warm temperatures, so avoid cold conditions and switch to winter tires when needed.
Comfort, Noise, and Daily Use
Ultra-high-performance tires often trade comfort for grip, but the Ecsta PS31 aims for a balanced feel. Its tread pitch sequence helps curb pattern noise, and the casing tuning keeps road texture from intruding too much into the cabin. Expect a firmer, more connected ride than a touring tire with composed sound levels at highway speeds. Proper inflation, regular rotations, and correct alignment help preserve even wear and keep noise consistent over the tire's life.
Sizes, Specs, and Fitment
The Ecsta PS31 comes in popular passenger-car sizes for sport compacts, sedans, and coupes. Speed and load ratings vary by size, so match the tire to your vehicle's door-jamb label or owner's manual, not just the wheel diameter. UTQG and service descriptions are molded on the sidewall for each specific size. For best results, avoid mixing tire models or seasons on the same axle, maintain recommended pressures, and rotate at regular intervals to promote even wear and consistent performance.
Price, Warranty, and Value
Both are summer performance choices in the Ecsta lineup. The PS31 targets value and balanced daily manners, a smart step up from standard all-season tires in warm climates. The PS71 sits higher in the range for drivers who want sharper response and more refinement. If you prioritize maximum feel, look at the PS71. If you want capable handling, confident wet control, and strong value, the PS31 is the practical pick.
Kumho Ecsta PS31 Ultra-High-Performance Summer Tire
Meet the Kumho Ecsta PS31, an ultra-high-performance summer tire tuned for sharp turn-in, stable cornering, and confident wet braking. Its directional tread channels water quickly, and a solid center rib keeps steering feel crisp at highway speeds. The PS31 suits drivers who want real performance they can use every day, lively on on-ramps, composed under hard stops, and comfortable enough for long commutes. If you're moving up from standard all-season tires and want warm-weather grip without overspending, the Ecsta PS31 is a smart place to start.
Key Features and Technology
Designed as a summer-only ultra-high-performance tire, the Ecsta PS31 pairs a silica-rich compound with a directional tread to boost warm-weather grip. A continuous center rib supports straight-line stability and precise steering, and broad shoulder blocks add confidence during quick transitions. Wide circumferential grooves and lateral channels move water away to help resist hydroplaning, while the casing tunes for day-to-day comfort without muting road feel. It fits sport compacts, sedans, and coupes that need predictable handling and strong value.
Dry Road Performance
On dry pavement, the Ecsta PS31 delivers direct steering and stable cornering. The firm center rib limits tread squirm for clean inputs, and reinforced shoulder blocks provide lateral grip when you load the outside edge in a turn. Its summer-focused compound stays compliant in heat, which supports confident braking and consistent stopping distances. For everyday spirited driving, from merging and passing to weekend back roads, the PS31 feels engaging without turning harsh, a practical step up from touring-biased tires in warm weather.
Wet Performance and Hydroplaning Resistance
Rainy commutes demand strong water evacuation. The Ecsta PS31's directional tread and wide circumferential grooves move water away from the contact patch to reduce hydroplaning at speed. Lateral notches add extra escape paths under throttle and braking, so traction stays predictable on damp and wet roads. The summer compound is tuned for warm temperatures, so avoid cold conditions and switch to winter tires when needed.
Comfort, Noise, and Daily Use
Ultra-high-performance tires often trade comfort for grip, but the Ecsta PS31 aims for a balanced feel. Its tread pitch sequence helps curb pattern noise, and the casing tuning keeps road texture from intruding too much into the cabin. Expect a firmer, more connected ride than a touring tire with composed sound levels at highway speeds. Proper inflation, regular rotations, and correct alignment help preserve even wear and keep noise consistent over the tire's life.
Sizes, Specs, and Fitment
The Ecsta PS31 comes in popular passenger-car sizes for sport compacts, sedans, and coupes. Speed and load ratings vary by size, so match the tire to your vehicle's door-jamb label or owner's manual, not just the wheel diameter. UTQG and service descriptions are molded on the sidewall for each specific size. For best results, avoid mixing tire models or seasons on the same axle, maintain recommended pressures, and rotate at regular intervals to promote even wear and consistent performance.
Price, Warranty, and Value
Both are summer performance choices in the Ecsta lineup. The PS31 targets value and balanced daily manners, a smart step up from standard all-season tires in warm climates. The PS71 sits higher in the range for drivers who want sharper response and more refinement. If you prioritize maximum feel, look at the PS71. If you want capable handling, confident wet control, and strong value, the PS31 is the practical pick.
Do you have a question about ECSTA PS31 245/40ZR17 91W?
Yes, within its intended use. The Ecsta PS31 is a summer-only ultra-high-performance tire built for warm-weather commuting and spirited drives. You'll get responsive steering, dependable wet braking, and composed highway manners. It should not be used in snow or near-freezing temperatures, so if your climate stays mild most of the year and you want an engaging drive without premium pricing, the PS31 is a strong daily-driver pick.
No. The Ecsta PS31 uses a summer compound optimized for warm conditions. In cold weather, generally below about 45 F or 7 C, the rubber stiffens and grip drops sharply, which increases braking distances and reduces traction. It is not designed for snow or ice and should be stored or swapped out when temperatures fall. If you face cold seasons, use dedicated winter tires, and for true year-round use in variable climates, consider an all-season performance tire instead.
Tread life depends on driving style, alignment, rotation intervals, load, and climate. Ultra-high-performance summer tires usually wear faster than touring all-seasons because of their softer warm-weather compounds. Check the UTQG rating on your PS31 sidewall for relative wear guidance within its category. Maintain proper pressure, rotate every 5,000 to 7,500 miles or as your vehicle maker advises, and keep alignment in spec, since aggressive driving and track use will shorten tire life.
Coverage varies by region and size. The Ecsta PS31 is a summer performance tire, and many sizes do not include a mileage (treadwear) warranty. All sizes include Kumho's limited warranty for workmanship and materials within the stated time or tread depth. Review the official warranty booklet for your exact size before purchase, and if mileage coverage matters to you, compare policies or consider an all-season performance model with a stated treadwear warranty.
Start by matching the tire to your vehicle's OE specifications. Check the size, load index, and speed rating on the driver's door-jamb label or in the owner's manual. The Ecsta PS31 is offered in common passenger-car sizes, but availability varies, and you should avoid lowering the OE speed rating or mixing tire types or seasons on the same axle. If you're changing wheel diameter or considering a plus size, consult a fitment specialist to verify overall diameter, clearance, and TPMS compatibility.
Kumho produces the Ecsta PS31 in its global manufacturing plants, including locations in South Korea, China, and Vietnam. The company follows strict quality control processes to ensure consistent performance and reliability.
For an ultra-high-performance summer tire, the PS31 targets a balanced ride with controlled noise. Its tread pitch helps reduce pattern hum, and the casing limits harshness. Expect a firmer, more connected feel than touring tires with sound levels that stay composed at legal highway speeds. Proper inflation and regular rotations help keep noise consistent as the tire wears, but if maximum quiet is your priority, a touring tire may be a better fit for long-distance cruising.
