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Cooper Discoverer STT Pro View Gallery (1)

Cooper Discoverer STT Pro

Cooper Tyres All Terrain and Off Road All Season

The Cooper Discoverer STT Pro is a All Terrain and Off Road All Season tyre designed to be fitted to SUV and 4x4s.

6.9
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
81%
Wet Grip
71%
Road Feedback
67%
Handling
70%
Wear
90%
Comfort
66%
Buy again
86%
Snow Grip
63%
Ice Grip
10%
7 Reviews
67% Average
104,007 miles driven
Cooper Discoverer STT Pro

Cooper Discoverer STT Pro

All Season Mid-Range
BETA
6.9 / 10
Based on User Reviews · Limited Confidence · Updated 23 Feb 2026

The Tyre Reviews Score is the most comprehensive tyre scoring system available. It aggregates professional test data from multiple independent publications, user reviews, and consistency analysis using Bayesian statistical methods, weighted normalisation, and recency-adjusted scoring to produce a single, reliable performance rating.

Learn more about our methodology
Score Components
Professional Tests
Weight: 80%
Tests: 0
Publications: 0
User Reviews
Weight: 15%
Reviews: 7
Avg Rating: 67.1%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 2.76
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tyre tests across multiple publications. Minimum 1 test(s) required.
  2. Normalize Positions: Convert test positions to percentile scores using exponential weighting (factor: 1.2).
  3. Apply Recency Weighting: More recent tests are weighted higher with a decay rate of 0.95.
  4. Incorporate User Reviews: Factor in user review data (minimum 5 reviews). Weight: 15%.
  5. Bayesian Smoothing: Apply Bayesian prior (score: 7, weight: 1.5) to prevent extreme scores with limited data.
  6. Calculate Final Score: Combine all components using normalization factor of 1.1. Max score with limited data: 9.5.
Component Weights
Test Data
80%
User Reviews
15%
Consistency
5%
All Configuration Parameters
ParameterValueDescription
safety_weight 0.7 Weight multiplier for safety-related metrics
performance_weight 0.55 Weight multiplier for performance metrics
comfort_weight 0.4 Weight multiplier for comfort metrics
value_weight 0.45 Weight multiplier for value-for-money metrics
user_reviews_weight 0.15 How much user reviews contribute to the final score
test_data_weight 0.8 How much professional test data contributes to the final score
consistency_weight 0.05 How much score consistency contributes to the final score
recency_decay_rate 0.95 Rate at which older test results lose influence (higher = slower decay)
min_test_count 1 Minimum number of professional tests required
min_review_count 5 Minimum number of user reviews required
score_version 1.9 Current version of the scoring algorithm
score_normalization_factor 1.1 Factor used to normalize raw scores to the 0-10 scale
confidence_factor_weight 0.2 How much data confidence affects the final score
position_penalty_weight 0.2 Penalty applied for poor test positions
gap_penalty_threshold 12 Score gap (%) that triggers additional penalties
min_metrics_count 2 Minimum number of test metrics needed per test
limited_data_threshold 2 Number of tests below which data is considered limited
single_test_penalty 0.75 Score multiplier when only one test is available
critical_metric_penalty 0.7 Penalty for poor performance on critical safety metrics
critical_metric_threshold 70 Score below which a critical metric penalty applies
position_exponential_factor 1.2 Exponent used to amplify position-based scoring
position_exponential_threshold 0.9 Position percentile below which exponential scoring applies
gap_multiplier_critical 3 Multiplier for critical gap penalties
max_category_weight 2 Maximum weight any single category can have
max_score_limited_data 9.5 Score cap when data is limited
bayesian_prior_weight 1.5 Weight of the Bayesian prior in smoothing
bayesian_prior_score 7 Prior score used for Bayesian smoothing
evidence_test_multiplier 1.9 Multiplier for test evidence in confidence calculation
evidence_metric_divisor 3 Divisor for metric count in evidence calculation
evidence_review_divisor 10 Divisor for review count in evidence calculation
combined_penalty_floor 0.2
All Tests

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Top 3 Cooper Discoverer STT Pro Reviews

Given 38% while driving a Ford 2001 Ford excursion 7.3 diesel (315/75 R16) on mostly country roads for 3,000 easy going miles
For a mud terrain tyre this is great. Good wear, great offroad and not bad on Road. Low noise in my case because the noisy dieselengine is louder than the tyres. Downsides are roadfeeling/feedback and rhat the tyres are heavy because of stiff sidewalls. Great for offroad, but the comfort really suffers. Not bad tyre in itself, but its more my preferances and use make me want to buy bfgoodrich ko2 in 285/75r16 next time.
Helpful 801
January 17, 2023
Given 79% while driving a Jeep wrangler jk (255/75 R17) on mostly country roads for 7 average miles
Northern Ontario, Canada. Two lane highways, bush roads, lots of trails, and made a couple new trails. 2014 Jeep Wrangker 2 door. All stock. Just ran these for a season April - November. Mix of road and trail. They did very well in mixed off road, sharp rock, gravel, mud, rust, smooth rock, wet/dry, bush roads. No issues. Clawed their way through everything. No cuts, no punctures, no issues. On road, not bad either. I didn’t experience an hydroplaning on highway (55mph/90kmh). Wearing very well, light feathering. 12,000 kilometres / 7,500 miles. Rotated once at 7,500 Km’s. 5 tires rotation. Swapping out to winter tires now. Wouldn’t use them for winter. Snow maybe, but not cold temps or ice. Less noise on pavement than I expected, that is subjective, but I expected worse from these. All in all, I would buy these again and recommend them.
Helpful 802
November 29, 2022
Given 74% while driving a Land Rover Range Rover Classic (225/45 R17) on a combination of roads for 3,000 easy going miles
Very tough tires. I have been extremely happy with them over the 3000 miles I have put on them. I have ONE big issue though, they suck in the sand. Doesn't matter how low you go with pressure, they just dig and dig and dig into the sand. It is for this reason that I have to find another tire. Great otherwise on rocks in Moab, washboard in Death Valley and dirt and mud elsewhere. Drove all the way to Moab from Los Angeles in the a thunderstorm for several hours and now issues at all. Always felt stable. And this is in a 1993 Range Rover.
Helpful 778
December 2, 2021

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Latest Cooper Discoverer STT Pro Reviews

Given 86% while driving a Land Rover Discovery 2 (225/45 R17) on a combination of roads for 10,000 average miles
one of ny best sets super happy with them
Helpful 693
February 19, 2022
Given 81% while driving a Jeep commander (265/70 R17 Q) on a combination of roads for 8,000 average miles
great all rounder built strong for off road /mud/ rock these tyres just don't want to get stuck . on the road there is a little noise but you soon get used to it , be aware the road holding will not match all terrains because of the large block tread pattern so on wet roads these will not grip aswell . as for wear my tyres have covered about 8000 miles and are still like new I used to use wrangler at's tyres and find the wear and ride quality is no worse with the stt pro's , in my opinion these tyre are a great all rounder hard wearing and can be found for very reasonable price you cant go far wrong ,
Helpful 666
October 21, 2016
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