Radar Dimax AS-8 255/40R20

Radar Dimax AS-8 255/40R20 XL 101W Grand Touring All-Season Tire DSC0272

🌀️ All SeasonπŸ“ 255/40R20πŸš— Passenger Car

πŸ’‘ Is the Radar Dimax AS-8 255/40R20 a Good Tire?

Yes β€” the Radar 255/40R20 is an Excellent-rated all-season grand touring tire (40 surveys) suited for mid-size SUVs and crossovers. Solid all-season versatility with grand touring comfort, though the limited survey sample size provides less comprehensive feedback data.

Compare 255/40R20 Tires β†’

About This Tire

The Radar Dimax AS-8 255/40R20 is a grand touring all-season tire designed for performance sedan, sporty coupe, crossover, and SUV drivers who prioritize fuel efficiency and ride comfort in everyday driving. Its asymmetric tread design and silica-enriched compound focus on balanced traction performance, long wear characteristics, and highway stability.

The tire features an asymmetric tread pattern with an even footprint for extended treadlife and rounder shoulders that provide progressive cornering response. Circumferential grooves and independent tread blocks work together to resist hydroplaning, while a continuous center rib promotes highway stability and reduces road noise. Wide distribution of lateral sipes across the tread ensures grip in wet, slushy, and light snow conditions. Driver feedback points to strong wet and dry performance, with comfort and durability standing out in regular use.

Compared to performance-oriented tires, it emphasizes comfort, stability, and long-term usability. Overall, it's a solid choice for various vehicle types used primarily for daily driving and highway travel in mixed weather conditions.

πŸ“Š Compare 255/40R20 Tires

β˜… Currently viewing: Radar Dimax AS-8 255/40R20

These tires share the same size (255/40R20) and are sorted by expert rating for easier comparison.

TireRatingBest ForSeason
β˜…Radar Dimax AS-8 255/40R20
πŸ›£οΈ Comfort-focused touring
⭐ Excellent (40 reviews)Daily highway commuting and city driving🌀️ All Season
πŸ›£οΈ Touring all-season
⭐ Excellent (51 reviews)Electric crossover and SUV daily driving🌀️ All Season
🏁 Max performance summer
⭐ Excellent (15 reviews)Premium sports cars and performance sedansβ˜€οΈ Summer
🏁 Ultra high performance
⭐ Good (657 reviews)Sports car and performance sedan daily driving🌀️ All Season
🏁 Max performance summer
⭐ Good (606 reviews)Sports car and performance sedan daily drivingβ˜€οΈ Summer
β˜… CURRENT
Radar Dimax AS-8 255/40R20
πŸ›£οΈ Comfort-focused touring
Rating
⭐ Excellent (40 reviews)
Best For
⭐ Daily highway commuting and city driving
Season
🌀️ All Season
Hankook iON evo AS SUV 255/40R20
πŸ›£οΈ Touring all-season
Rating
⭐ Excellent (51 reviews)
Best For
⭐ Electric crossover and SUV daily driving
Season
🌀️ All Season
Goodyear Eagle F1 Asymmetric 6 255/40R20
🏁 Max performance summer
Rating
⭐ Excellent (15 reviews)
Best For
⭐ Premium sports cars and performance sedans
Season
β˜€οΈ Summer
Hankook Ventus S1 noble2 255/40R20
🏁 Ultra high performance
Rating
⭐ Good (657 reviews)
Best For
⭐ Sports car and performance sedan daily driving
Season
🌀️ All Season
Bridgestone Potenza Sport 255/40R20
🏁 Max performance summer
Rating
⭐ Good (606 reviews)
Best For
⭐ Sports car and performance sedan daily driving
Season
β˜€οΈ Summer

β˜… Currently viewing this tire. Sorted by expert rating (high to low).

✨

Key Features

πŸ”„
Asymmetric Tread Design
Even footprint distribution promotes long wear while rounder shoulders provide progressive, predictable cornering response.
🌧️
Hydroplaning Resistance
Circumferential grooves and independent tread blocks enhance water evacuation and wet traction performance.
πŸ›£οΈ
Highway Stability
Continuous center rib design promotes straight-line stability and contributes to a quieter, more comfortable ride.
❄️
All-Season Capability
Wide distribution of lateral sipes provides grip in wet, slushy, and light snow conditions year-round.
⚑
Silica-Enriched Compound
Advanced compound formulation balances fuel efficiency with traction performance across temperature ranges.

🎯 Best For

βœ“ Daily highway commuting and city drivingβœ“ Performance sedans and sporty coupes seeking comfortβœ“ Crossovers and SUVs used for family transportationβœ“ Year-round driving including occasional light snow
πŸ“‹

Specifications

πŸ“
Size
255/40R20
βš–οΈ
Load Index
101
🏎️
Speed Rating
W
πŸ“

TirePath Editorial Review

4.5
β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…TirePath Rating

"We see this as a solid choice for drivers seeking comfortable daily performance across multiple seasons at an attractive price point. The trade-off is lacking a mileage warranty for long-term value assurance."

By TirePath Editorial TeamFeb 17, 2026
⭐

TireRack Ratings

Overall Rating⭐ Excellent
Survey Ratings40 reviews
CategoryGrand Touring All-Season

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πŸ“ Popular Tire Sizes

Radar Dimax AS-8 255/40R20 XL 101W Grand Touring All-Season Tire DSC0272
Size255/40R20
Season🌀️ All Season
VehiclePassenger Car