Cooper Discoverer All Season vs Kleber Quadraxer 3
Ahead in each discipline
The Cooper Discoverer All Season and the Kleber Quadraxer 3 have met in one independent test so far, and the Quadraxer 3 finished ahead. The Quadraxer 3 was stronger in dry, wet, snow and value.
Performance profile
15 measurements from the one shared test, each tyre shown as its share of the better figure.
Where each is furthest ahead
Discoverer All Season
Quadraxer 3
Point at or tap any spoke for both tyres' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 36 m stop against 34.2 m is 95%; each spoke averages the shared tests that recorded it.
Where each scores higher
Discoverer All Season
Not ahead in any category
Quadraxer 3
Point at or tap any spoke for both tyres' figures.
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Every measurement, side by side
Both tyres' figures from the one test that ran them together, on the same car, in the same size, on the same day. The bar grows towards the tyre that did better.
| Measurement | Discoverer All Season | Gap | Quadraxer 3 |
|---|---|---|---|
| Dry Quadraxer 3 ahead | |||
| Dry Braking m | 42.7 | 0.7% | 42.4 |
| Dry Handling s | 55.38 | 1.5% | 54.55 |
| Subj. Dry Handling pts | 8.5 | 5.9% | 9 |
| Wet Quadraxer 3 ahead | |||
| Wet Braking m | 34.5 | 2% | 33.8 |
| Wet Handling s | 91.1 | 1.9% | 89.4 |
| Subj. Wet Handling pts | 7.5 | 20% | 9 |
| Straight Aqua km/h | 79.2 | 0.6% | 79.7 |
| Curved Aquaplaning m/sec2 | 2.95 | 6.9% | 2.76 |
| Snow Quadraxer 3 ahead | |||
| Snow Braking m | 21.34 | 8.6% | 19.51 |
| Snow Traction s | 5.86 | 10.8% | 5.23 |
| Snow Handling s | 92.3 | 6.2% | 86.6 |
| Subj. Snow Handling pts | 8.5 | 17.6% | 10 |
| Comfort Level | |||
| Subj. Comfort pts | 10 | = | 10 |
| Noise dB | 69.7 | = | 69.7 |
| Value Quadraxer 3 ahead | |||
| Rolling Resistance kg / t | 9.26 | 12.9% | 8.07 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tyres shared.
Head to head in 1 test in 2025
Each row is one published test in which both tyres ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Discoverer All Season | Field | Quadraxer 3 |
|---|---|---|---|
| The Best All Season Tyres for 2025/26 | P7 of 9 | P5 of 9 |
Discoverer All Season vs Quadraxer 3: your questions
Is the Cooper Discoverer All Season or the Kleber Quadraxer 3 the better tyre?
The Cooper Discoverer All Season and the Kleber Quadraxer 3 have met in one independent test so far, and the Quadraxer 3 finished ahead. On the Tyre Reviews Score, which weighs every test and review we hold, the Discoverer All Season scores 8.2 and the Quadraxer 3 9.4 out of 10.
Which is better in the wet, the Discoverer All Season or the Quadraxer 3?
The Quadraxer 3 led 4 of the 5 wet measurements the shared tests recorded.
Which is better in the dry?
The Quadraxer 3 led 3 of the 3 dry measurements the shared tests recorded.
Which is better in snow?
The Quadraxer 3 led 4 of the 4 snow measurements the shared tests recorded.
Which is quieter and more comfortable?
Owners rate comfort 8/10 for the Discoverer All Season and 9.1/10 for the Quadraxer 3.
What do owners say?
Owners rate the Discoverer All Season 90% from 1 reviews and the Quadraxer 3 86% from 32.
Are they available in the same sizes?
The Discoverer All Season is made in 42 sizes (14 to 20 inch) and the Quadraxer 3 in 72 (14 to 20 inch). 25 sizes are available in both. On the EU label the Discoverer All Season is graded B for wet grip and C for rolling resistance in most sizes; the Quadraxer 3 B and C.
Which is the newer tyre?
The Quadraxer 3 is the newer design: it reached the market in 2022, the Discoverer All Season in 2019. The Quadraxer 3 replaced the Kleber Quadraxer 2.
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Run either of these?
Your review is the part of this page no test can supply: how the tyre wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tyres ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tyre Reviews Score rates each tyre out of 10 from every independent test result and vetted owner review we hold, so two tyres can be compared even before a test has run them together.
Who does the testing
Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.