Radar Dimax R8 review
Relative score 60% tests + 40% owners
Better than 11% of the summer tires we score.
Owners 33 · 320 reviews analysed Road tests 58 · 1 test
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Radar Dimax R8 has a Relative Score of 47 out of 100 among summer tires. In 2 road tests with an overall ranking it finished first 0 times and in the top three 0 times. 320 owner reviews rate it 33 out of 100. 49% would buy it again.
Two scoring systems, side by side
Owner scores come from reviews found online; road-test scores come from instrumented tests. Where they disagree, it is usually a discipline owners rarely push to the limit.
How scores work
- Relative score
- 0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, the missing half is estimated from it, so the score stays closer to average. It needs at least one road test or five owner reviews.
- Road tests
- 0–100 per score, from published tests, newer tests counting more. Each result is compared with every other tire in the same test, so a win against a strong field counts for more. The average tested tire gets 70, the best 100; with only one or two tests a tire stays nearer 70. The discipline rows show % of the best tire in that test.
- Owner reviews
- 0–100 from the owner reviews we found online, adjusted for how generously each site rates and scaled like the road tests: the average tested tire gets 70. With only a few reviews a tire stays near the average.
By owner reviews
33/100From 320 owner reviews analysed, scaled like the road tests: the average tested tire gets 70.
By road tests
58/100Scaled across every tested tire: the average gets 70, the best 100.
What owners like and dislike
Themes extracted from 320 owner reviews found online.
The Radar Dimax R8 receives a polarized mix of reviews, largely divided between budget-conscious motorists praising its exceptional value and quiet, comfortable ride, and performance-oriented drivers criticizing its wet-weather grip and high-speed stability. While many users report satisfactory daily driving performance and impressive longevity for the price, a notable minority experienced severe handling issues, excessive road noise over time, and structural defects such as sidewall bulges or premature wear.
Pros
- Unbeatable value and significantly lower price point compared to premium brands
- Comfortable and relatively quiet ride during normal daily commuting
- Decent dry-weather handling and straight-line stability for standard driving styles
- Good initial tread wear and longevity reported by high-mileage motorway drivers
Cons
- Subpar wet-weather traction, with frequent complaints of slip and triggered traction control
- High-speed instability and a 'twitchy' or 'swimmy' feel at motorway and Autobahn speeds
- Elevated or rapidly increasing road noise as the tires age
- Reports of structural integrity issues, including inner sidewall bulges and premature delamination
Worth knowing
- Users running these tires on rear-wheel-drive luxury and performance sedans (such as BMW 3 and 5 series, Mercedes E-Class) frequently noted high-speed tracking issues and rear-end twitchiness.
- Drivers utilizing large sizes (e.g., 255/35R21) appreciated the rare size availability at an affordable price point, though heavy high-torque applications sometimes highlighted wet-grip limitations.
2 published test appearances (1 in the score)
Placement within each field. Open a test for the discipline-by-discipline result.
2020 tire Market Overview Braking Test · 245/45 R18
34th of 49
| Discipline | Placement | Field position |
|---|---|---|
| Wet Braking | 39th of 49 | |
| Dry Braking | 38th of 49 |
Source: Auto Bild
2017 Auto Bild Summer tire Shootout · 225/50 R17
39th of 43
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Bild
Radar Dimax R8 specs & sizes
Prices vary by size, so each one links out separately.
| Specifications | |
|---|---|
| Tread depth | 10/32″ |
| UTQG | 320 A A |
| Treadwear warranty | 35,000 mi |
| Sidewall | Blackwall |
| EU label: wet grip | B |
| EU label: energy | C |
| EU label: external noise | 71–73 dB |
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Reviews from our readers
Drivers who have these tires on their car, in their own words. We check every review before it goes live.
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