Kumho Ecsta PS91 Performance
The Ecsta PS91 by Kumho is a summer tire with an overall rating of 3.8 / 5. This places it in spot #39 among the 53 summer tires we’ve reviewed.
Dry Performance Rank
The Ecsta PS91 received a Dry Performance rating of 4.3 / 5. This ranks it #40 among the 53 summer tires we’ve reviewed.
Considering this, you may be underwhelmed by its performance on dry roads. However, it may perform well in other categories.
Wet Performance Rank
The Ecsta PS91 received a Wet Performance rating of 3.8 / 5. This ranks it #34 among the 53 summer tires we’ve reviewed.
Considering this, you may be underwhelmed by its performance on wet roads. Other buyers have not been overly pleased with their traction and hydroplane resistance.
Comfort Performance Rank
“Comfort” performance relates to the tire’s quietness, and smoothness. Better ratings will keep tire ‘roar’ or road-noise to a minimum. Great for luxury cars, or anybody looking for a quieter cabin.
With a Comfort Performance rating of 3.7 / 5, the Ecsta PS91 is ranked #36 among the 53 summer tires we’ve reviewed.
This rating implies the tire is louder than most on the road, and/or typical buyers of this tire were generally used to quieter and smoother tires. It’s likely Kumho was not focused on reduced road noise for the Ecsta PS91.
Treadwear Performance Rank
Treadwear performance is a measure of how well the tire matched up to customers’ expectations of how many miles they will last. Keep in mind, this rating can be influenced significantly by users giving it 1-star or 5-stars because expectations were too extreme. Maybe their last set of tires lasted 100,000 miles and they now think all tires will last that long (that’s extremely rare). Or perhaps their alignment was really off, causing them to wear out in only a few thousand miles.
The Ecsta PS91 received a Treadwear Performance rating of 2.6 / 5. This ranks it #49 among the 53 summer tires we’ve reviewed.
With this rating, most buyers were not very happy with how long this tire lasted. If you’re looking for a long-lasting tire, best pick something else.
UTQG Rating: What does 260 AA A Mean?
The UTQG Specification is also relevant to discuss here. This is a specification provided by the manufacturer after testing. The rating for this tire is 260 AA A. There are three parts to this specification: treadwear grade, traction grade, and temperature grade (in that order).
The treadwear grade for this tire is 260. This score implies the tire is relatively soft, and will wear pretty quickly. Usually a trade-off for excellent dry-road traction.
The traction grade for this tire is ‘AA’. This is a great rating, and implies the tire can handle high g-forces before starting to skid.
The temperature grade for this tire is ‘A’. This rating refers to how well the tire dissipates heat at high speeds. If the tire gets too hot at high speeds, it may come apart. Keep in mind, these speeds are very high, and any tire manufactured these days is capable of maintaining highway speeds up to 80mph.
This is the highest temperature grade rating. An A rating here suggests the tire is temperature-stable at speeds over 115mph. Slow down!
Snow & Ice Performance
Snow/Ice Performance Rank
Snow and Ice performance is tested on a specifically designed track to simulate these environments. These ratings represent how confident drivers in these conditions felt on these tires.
The Ecsta PS91 is not rated for winter conditions, we do not recommend attempting to drive with this tire in the snow.
Off-Road Performance Rank
The off-road ratings represent how satisfied other drivers were in these conditions. These conditions could include anything from dirt/gravel roads to extreme offroading/bouldering. If you intend to use these in more extreme conditions, we always recommend checking individual reviews on TireRack.com for specific examples.
The Ecsta PS91 is not rated for off-road conditions, we do not recommend attempting anything beyond casual dirt roads on this tire.
Unfortunately, Kumho does not offer a warranty on this tire for treadlife. However, TireRack.com usually offers their own road-hazard warranty that should take care of any unexpected potholes, screws, or other debris that causes tire damage.