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Cooper Discoverer S/T Maxx vs Cooper Discoverer STT PRO

Cooper Discoverer S/T Maxx vs STT Pro - Test Data [2024]

Here are the key stats for the Cooper Discoverer S/T Maxx and Cooper Discoverer STT PRO tyres, at a glance.
Discoverer S/T MaxxDiscoverer STT PRO
Vehicle SuitabilityLight Truck / SUVLight Truck / SUV
Driving StyleOn-/Off-Road All-TerrainOff-Road Max Traction
SeasonAll SeasonAll Season
Release Date20112015
Run Flat?NoNo
Overall Score79/10082/100


Enter your tyre size below to see the best prices for your specific size (if unsure, check placard on the driver's side door or your existing tyres).

Cooper Discoverer S/T Maxx vs Cooper Discoverer STT PRO in Australia

The Discoverer S/T Maxx has been around in Australia for about 13 years, whereas the Discoverer STT PRO has been on the market for about 9 years

The Discoverer S/T Maxx is rated for on-/off-road all-terrain action, however the Discoverer STT PRO tyres are classified as off-road max traction. Both tyres are designed for use with 4WDs, SUVs and light trucks.

Both of these are considered all season tyres. Neither of them are runflat tyres. Both brands are considered to be in the mid-range part of the market.

Read on to see how each of these tyres stack up against each other!

How We Reviewed These Tyres

We've analysed results of the following tyre benchmarks to make data-driven comparison of the Discoverer S/T Maxx and the Discoverer STT PRO tyres.

  • TireRack: Best in On-/Off-Road Commercial Traction
  • Amazon: Best Sellers in All-Terrain & Mud-Terrain Tires
  • The Best Off-Road Max Traction Tires in 2024 by TiresVote

Benchmark Test Data

Here are the results from a number of magazine tests and benchmarks done on the Discoverer S/T Maxx and Discoverer STT PRO tyres.
Discoverer S/T MaxxDiscoverer STT PRO
Dry PerformanceExcellentExcellent
Wet PerformanceExcellentGood
Snow/Ice PerformanceExcellentGood
Overall Score79/10082/100


Based on the results of a number of tyre benchmarks, the Discoverer S/T Maxx scores 4 out of 5 for comfort and the Discoverer STT PRO scores 4 out of 5.


Introduced by the National Highway Traffic Safety Administration (NHTSA) in the USA, the Uniform Tire Grading System (UTQG), is a system for comparing one tyre product to another on the basis of some standardised tests.


Unfortunately, we don't have any UTQG treadwear data available for either of these tyres.


The UTQG system measures traction as straight-line braking in dry conditions. The scale is AA, A, B, C, with AA being the best grade, and C the worst.

We don't have any UTQG traction data available for either of these tyres.

Temperature Resistance

The UTQG temperature resistance tests measure how well tyres can dissipate heat that builds up due to friction with the road. The scale is A, B, C, with A being the highest grade.

We don't have any UTQG temperature data available for either of these sets of tyres.


In terms of distance, the Discoverer S/T Maxx tyres have a guarantee of 80,000 kilometres, whereas the Discoverer STT PRO tyres have a guarantee of 80,000 kilometres.

Comparisons With Similar Tyres

Still on the fence about these tyres? Check out how they compare to other similar tyres on the market in Australia!


Let's now take a look at the main differences between these two sets of tyres.

All in all, the Discoverer S/T Maxx tyres get a score of 79 out of 100, while the Discoverer STT PRO tyres get a score of 82 out of 100.

In terms of a distance guarantee, the Discoverer S/T Maxx are guaranteed for 80,000 kilometres, while the Discoverer STT PRO tyres are guaranteed for 80,000 kilometres.

Full Size List (click to show)

Below is a list of all 73 sizes of the Discoverer S/T Maxx, and all 93 sizes of the Discoverer STT PRO tyres sold in Australia, sorted by tyre width.

Discoverer S/T Maxx Sizes

105/31 R15 109Q
125/33 R15 108Q
125/35 R20 121Q
235/85 R16 116Q
235/80 R17 120Q
245/75 R16 120/116Q
245/70 R17 119Q
245/70 R17 119/116Q
245/75 R17 121Q
245/75 R16 120Q
245/75 R17 121/118Q
255/80 R17 121Q
255/75 R17 111Q
255/80 R17 121/118Q
255/85 R16 123Q
265/70 R16 121Q
265/70 R16 121/118Q
265/70 R17 118Q
265/65 R17 120Q
265/60 R18 119Q
265/60 R20 121/118Q
275/65 R20 126Q
285/55 R20 122Q
285/65 R18 125Q
285/70 R17
285/60 R20 121Q
285/75 R17 121Q
295/70 R18 129Q
305/65 R17 121/118Q
305/60 R18 121Q
305/55 R20 121/118Q
30x9.5 R15 LT 104Q
305/70 R18 126Q
305/60 R18 121/118Q
35x12.5 R20 LT 121Q
125/37 R17 124P
125/35 R15 113Q
215/85 R16 115Q
215/85 R16 115/112Q
225/75 R16 115/112Q
225/75 R16 115Q
235/80 R17 120/117Q
235/85 R16 120Q
235/85 R16 120/116Q
245/70 R16 118Q
245/70 R16 118/115Q
255/75 R17 111/108Q
265/65 R17 120/117Q
265/70 R17 121/118Q
265/60 R18 119/116Q
265/70 R17 121Q
265/75 R16 123Q
265/70 R16 121S
275/70 R18 125Q
275/70 R17 121Q
275/70 R17 121/118Q
275/65 R18 123Q
285/70 R17 121Q
285/75 R16 126Q
285/70 R17 121/118Q
315/70 R17 121/118Q
31x10.5 R15 LT 109Q
265/60 R20 121Q
285/60 R18 122Q
285/75 R17 121/118Q
295/55 R20 123Q
295/70 R17 121Q
295/70 R17 121/118Q
305/70 R16 124Q
305/55 R20 121Q
305/65 R17 121Q
315/75 R16 127Q
315/70 R17 121Q

Discoverer STT PRO Sizes

225/75 R16 115Q
235/85 R16 116Q
235/85 R16 120Q
245/75 R16 120Q
245/75 R16 116Q
265/75 R16 123/120Q
265/75 R16 123K
265/70 R17 121/118Q
265/70 R17 118Q
265/75 R16 123/120K
275/65 R20 126/123Q
275/70 R18 125/122K
275/70 R18 125/122P
275/70 R18 122P
275/70 R18 125K
285/75 R16 123Q
285/75 R16 126/123Q
285/70 R17 118Q
285/65 R18 125/122Q
285/65 R18 122Q
295/70 R17 121/118Q
295/65 R20 126Q
295/65 R20 129/126K
295/70 R18 129P
295/55 R20 120P
305/55 R20 121Q
305/60 R18 118Q
305/70 R16 124/121K
305/70 R18 126/123K
305/65 R17 121/118Q
305/55 R20 121/118Q
305/70 R18 123Q
305/65 R17 118Q
305/70 R16 124/121Q
315/75 R16 127K
315/75 R16 127/124K
315/75 R16 124Q
325/65 R18 127/124Q
325/50 R22 122Q
40x13.5 R17 LT 121Q
35x12.5 R20 LT 121
37x13.5 R18 LT 124Q
37x13.5 R22 LT 123Q
37x12.5 R20 LT 126Q
31x10.5 R15 LT 109Q
35x12.5 R20 LT 121Q
215/85 R16 115/112Q
215/85 R16 112Q
215/85 R16 115Q
225/75 R16 115/112Q
225/75 R16 112Q
235/85 R16 120/116Q
245/75 R16 120/116Q
255/75 R17 111Q
255/75 R17 108Q
255/75 R17 111/108Q
265/75 R16 120Q
265/70 R17 121Q
275/65 R18 123K
275/65 R20 121/118Q
275/65 R20 123Q
275/65 R18 123/120K
275/65 R18 120Q
275/65 R20 121Q
275/65 R18 123/120Q
285/75 R16 126K
285/70 R17 121Q
285/70 R17 121/118Q
295/55 R20 123/120Q
305/70 R16 121Q
315/75 R16 127/124Q
38x15.5 R18 LT 128Q
37x12.5 R17 LT 124Q
33x12.5 R15 LT 108Q
35x12.5 R22 LT 117Q
30x9.5 R15 LT 104Q
35x13.5 R20 LT 122Q
285/75 R16 126/123K
295/65 R20 129/126Q
295/60 R20 126/123Q
295/70 R18 126P
305/70 R18 126/123Q
305/55 R20 118Q
315/70 R17 118Q
38x13.5 R20 LT 123Q
38x15.5 R20 LT 128Q
37x13.5 R20 LT 127Q
35x12.5 R15 LT 113Q
295/60 R20 123Q
295/70 R17 118Q
305/60 R18 121/118Q
315/70 R17 121/118Q
325/65 R18 124Q
Louis from Tyre Geek


I'm Louis, an engineer passionate about helping Australians choose better tyres for their vehicles!