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FalkenAzenis RT660
  • FalkenAzenis RT660
  • FalkenAzenis RT660
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The Azenis RT660 is Falken's Extreme Performance Summer tire developed for motorsports enthusiasts, participants in track days, or any driver looking for competition-ready levels of dry traction and handling. The Azenis RT660 is designed to provide maximum performance in warm, dry to damp conditions, and like all Extreme Performance Summer tires, it is not intended to be serviced, stored, nor driven in near-and below-freezing temperatures, through snow or on ice.

Falken Azenis RT660 Callouts

Utilizing a motorsports-inspired tread compound enhances the traction delivered by the Azenis RT660 for acceleration, braking, and handling in dry and wet conditions. The low-void, symmetric pattern maximizes the rubber in contact with the surface. Massive shoulders deliver extreme levels of lateral grip, and the broad, continuous center rib provides solid on-center feel and longitudinal traction for acceleration and braking. Deep, circumferential grooves and full-depth notches help evacuate water from the contact patch to enhance hydroplaning resistance.

The internal construction of the Azenis RT660 features a two-ply, polyester casing utilizing Falken's Crosshatch Carcass design to enhance handling and stability. Two wide, steel belts support the tread area and are reinforced by two polyamide cap plies to further improve handling and high-speed capability.

Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels, or using them to support, roll or drive a vehicle.

Flexing of the specialized rubber compounds used in Extreme Performance Summer tires during cold-weather use can result in irreversible compound cracking. While compound cracking is not a warrantable condition because it occurs as the result of improper use or storage, tires exhibiting compound cracking must be replaced.

Related Information: Can Tires Be Shaved For Autocross / Track Use / Competition? | What Tire Air Pressure Do I Use For Track And Autocross? | How Do I Store Track & Competition DOT Tires In Cold Temperatures?

Tire Rack Test Results Falken Azenis RT660

Extreme Performance Summer - 2024 Test 5 Part 2(16:42)

EP tires wear two distinct hats. They’re great on sporty and high horsepower vehicles conquering the everyday road and on those same vehicles as they dominate in various races and track days. The nuances here are many as increased traction and performance in one of these arenas can mean a tradeoff elsewhere. This two-part test lays it all bare and reveals just how close, but different, this category can be!

Read the Full Test Report

Ratings Charts & Reviews Falken Azenis RT660

Tire Category: Extreme Performance Summer

Consumer Surveys

 
Best in Category
Miles Reported
Recommended
Treadwear
Falken Azenis RT660
Good
89%
1.2M
8.1 - Good
6.1 - Fair
6.0 Hydroplaning Resistance
6.3 Wet Traction
9.1 - Excellent
9.1 Corner Stability
9.2 Dry Traction
9.0 Steering Response
N/A
N/A Light Snow Traction
N/A Deep Snow Traction
N/A Ice Traction
7.0 - Good
7.1 Ride Quality
6.8 Noise
6.7 - Good

Falken Azenis RT660 Reviews

Performance reviews suggest the Falken Azenis RT660 excels in dry traction, with drivers praising its "telepathic" grip, sharp turn-in, and consistent performance during autocross, track days, and HPDE events. Many note it warms up quickly and handles heat better than competitors, though some report greasiness in prolonged high temps. Wet traction receives mixed feedback-adequate in light rain but prone to hydroplaning in standing water. Treadwear is praised for a 200TW tire, with users reporting 8-12 track days or 100+ autocross runs, though heavy cars or aggressive setups may cause accelerated wear. A recurring concern is tread delamination under extreme use, though most find durability acceptable for dedicated performance applications.

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Customers Like:

Customers Dislike:

459 reviews mention "Dry Traction"

  • 449 positive
  • 10 negative

Customers praise the RT660's exceptional dry traction, with many scoring 9s and 10s for its "sticky" grip, precise cornering, and track-ready performance. Reviewers highlight strong braking stability, predictable handling at the limit, and quick warm-up times ideal for autocross and HPDE events. While optimized for dry conditions, users note consistent lap times even in hot sessions, calling them a top choice for enthusiasts prioritizing aggressive dry performance.

May 04, 2025
(Verified Purchase)
4.3 out of 5 Star Rating
4.3 out of 5

REVIEW " Great track tire and good tire on street" Category: Dry Traction " Great track tire and good tire on street"...

Great track tire and good tire on street

Vehicle: 1997 BMW M3 Sedan
Miles Driven on Tires: 500
Driving Conditions: Track/Autocross
Location: DORR, MI
Driving Style: Spirited

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April 28, 2025
(Verified Purchase)
3.8 out of 5 Star Rating
3.8 out of 5

...The dry traction is fantastic and you can take roundabouts at any speed...

Tires are extremely grippy and hug the corners great. I was very impressed with the wet traction after getting caught in the rain a couple times. I couldnt even get the rear tires to kick out when i tried, Granted its a 1.6 miata but none the less impressive. The dry traction is fantastic and you can take roundabouts at any speed. I plan on doing some autocross eventually with the car but at least for spirited driving and backroads i have had no need for any more traction.

Vehicle: 1991 Mazda Miata
Miles Driven on Tires: 400
Driving Conditions: Mostly City
Location: LAKEVILLE, MN
Driving Style: Spirited

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374 reviews mention "Treadwear"

  • 236 positive
  • 138 negative

Customers praise the RT660's treadwear, with many scoring 8-10 for excellent durability through 60+ heat cycles and 10+ track days, noting consistent grip even as tread depth decreases. While some report accelerated wear on heavy cars or after extreme sessions, most highlight impressive heat tolerance and longer-than-expected lifespan for a 200TW track-focused tire.

June 19, 2026
(Verified Purchase)
4.2 out of 5 Star Rating
4.2 out of 5

Might be the best 200 tread wear tires you can get

Might be the best 200 tread wear tires you can get

Vehicle: 1985 Toyota Supra
Miles Driven on Tires: 5,000
Driving Conditions: Track/Autocross
Location: FORT JONES, CA
Driving Style: Spirited

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263 reviews mention "Wet Traction"

  • 142 positive
  • 121 negative

Wet Traction Summary (Falken Azenis RT660 - Extreme Performance Summer): Reviews scoring 6 and below highlight mediocre wet traction, with concerns about hydroplaning in standing water and sudden loss of grip. Drivers report slippery performance in rain, noting unpredictable breakaway and limited confidence, especially on highways or during cold/wet autocross conditions.

April 10, 2026
(Verified Purchase)
3.3 out of 5 Star Rating
3.3 out of 5

...The main sacrifice with this tire is its poor performance in the wet. In the rain you need to be very careful with this tire...

Track use: This is a fast, consistent tire that does not fall off half way through a 25 min session, only takes a lap or 2 to get warm and allows me to push for fast times for the rest of the session. This is basically one of the fastest 200TW tires at a low price point that you can get while still being durable and hanging the longevity to last 5-8 track days. The main sacrifice with this tire is its poor performance in the wet. In the rain you need to be very careful with this tire.

TLDR - basically as good as a $500 200TW tire in the dry, but won't be competitive at all in the wet

Vehicle: 2022 Hyundai Elantra N
Miles Driven on Tires: 3,000
Driving Conditions: Track/Autocross
Location: CHICAGO, IL
Driving Style: Spirited

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March 11, 2025
(Verified Purchase)
3 out of 5 Star Rating
3 out of 5

...The Falken RT 660 offers improved warm and dry traction without question but I am not so sure that the RS needs it...

I think these tires are overkill for what the Focus RS is. Maybe one day I will have the ability to track prep the rest of the car to meet the capability of the tires but as of right now it feels like a street car with track tires on it. When they are cold the overall performance is very poor. Poor traction, harsh ride quality, and ALOT of tire noise. The tire wear is uneven, I think in part to my alignment specs but also due to the width of the tire on the rim. These 275 wide tires run very very wide in comparison with other tires. I have owned personally two sets of 285/30R19 tires from different manufacturers that were much narrower in width than these Falken tires are. I have choppiness on the inside edge that correlates to my negative camber and aggressive toe setting but I also feel like the side wall is pinched on the rim contributing to the unwanted tire wear effect. I did notice a bit of concerning sidewall separation already as well. The wheels they are mounted on are 9.5 wide but I would recommend a 10 wide wheel or better for future consideration. I'm not sure of the exact mileage I have put on yet but it was one summer of daily driver/commuter use driving 30 minutes one way to my employer. This year I have a new daily driver so I should be able to enjoy the potential of the tires a bit more as I don't need to depend on the RS to get me to my job everyday. I currently feel like the Nitto Invo was slightly better all around for this car. The Falken RT 660 offers improved warm and dry traction without question but I am not so sure that the RS needs it. Especially my car that has increased tread width over the factory tire sizing. I do however enjoy the track car vibe I get when driving over loose material such as sand or warm blacktop. You can hear the soft rubber of the tire pick up what is on the road and throw it towards the bottom of the car. I find it somehow soothing and I think it helps make something special slightly more so.

Vehicle: 2017 Ford Focus RS
Miles Driven on Tires: 9,000
Driving Conditions: Combined Highway/City
Location: JACKSON, WI
Driving Style: Spirited

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Consumer Reviews

Media Gallery

Extreme Performance Summer - 2024 Test 5 Part 2(16:42)

EP tires wear two distinct hats. They’re great on sporty and high horsepower vehicles conquering the everyday road and on those same vehicles as they dominate in various races and track days. The nuances here are many as increased traction and performance in one of these arenas can mean a tradeoff elsewhere. This two-part test lays it all bare and reveals just how close, but different, this category can be!

Read the Full Test Report

Extreme Performance Summer - 2024 Test 5 Part 1(22:25)

EP tires wear two distinct hats. They’re great on sporty and high horsepower vehicles conquering the everyday road and on those same vehicles as they dominate in various races and track days. The nuances here are many as increased traction and performance in one of these arenas can mean a tradeoff elsewhere. This two-part test lays it all bare and reveals just how close, but different, this category can be!

Watch Part 2: Track Test



Read the Full Test Report

TJ & Falken Talk Azenis RT660 (12:13)

In this first ever, in-person episode of “TJ Talking,” our Tire Information and Testing Manager, TJ Campbell, meets up with Bakari Howard and Tsuyoshi Johnson from Falken Tire to talk about the Falken Azenis RT660. The Falken team talks about what they foresee in RT660’s future, maximizing the tire’s performance, and differences between the RT660 and its competition.

Testing Extreme Performance Summer Tires 2022: Falken Azenis RT660(1:35)

The Azenis RT660 is consistently at or near the top of our testing, so we used it as a benchmark for the newest competitors on the market.

Read the Full Test Report

Testing Extreme Performance Summer Tires: Falken Azenis RT660(01:49)

The Azenis RT660 is consistently at or near the top of our testing, so we used it as a benchmark for the newest competitors on the market.

Read the Full Test Report

Testing Extreme Performance Summer Tires 2020: Falken Azenis RT660(01:44)

Falken’s Azenis RT660 is new for 2020, and previous testing shows it can hold its own with the fastest in the category. We see how it compares to the newest from one of the biggest names in the industry.

Read the Full Test Report

The Thrill of the Falken Azenis RT660(00:17)

Along with the thrilling ride provided by Extreme Performance Summer tires, the Falken Azenis RT660 is designed to deliver predictable handling along with maximum traction both on and off the track.

Testing Extreme Performance Summer Tires 2020: Falken Azenis RT660(01:43)

The new Falken Azenis RT660 is designed to compete with the fastest tires in the category, so we compared it to the newest and best to see how it performs in the real world.

Read the Full Test Report

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