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    N'Fera SU1

    ULTRA HIGH PERFORMANCE SUMMER
    The N'Fera SU1 is your summer tire of choice when navigating through a sudden storm or cruising on a desert road. The tire's 3 main grooves and 1 semi-groove designs work together to enhance handling in wet conditions. Excellent dry and wet traction are supported by optimum split surface siping. By increasing shoulder block stiffness, pressure distributes evenly and ensures maximum cornering performance.
    W and Y Speed Rated UTQG 300 AA A
    4.7
    THIS TIRE WAS DESIGNED TO PERFORM...
    Searched: Palmdale, California 93552

    NEXEN N’Fera SU1, Ultra High Performance Summer Tire for Sports Cars & Performance Vehicles

    Built for Every Road. Ready for Every Storm.

    The NEXEN N’Fera SU1 is an ultra-high-performance summer tire engineered for the driver who demands maximum grip in both dry conditions and sudden wet-weather scenarios. Whether navigating a desert highway at speed or reacting to a surprise summer storm, the SU1 is built to maintain control when it matters most. Its three main grooves and one semi-groove work in concert to optimize wet drainage and handling simultaneously, while optimum split surface siping delivers the precise bite needed for excellent traction on both dry and wet surfaces.

    With a perfect 10 out of 10 for both handling and braking, alongside a 9 out of 10 comfort score that stands out in the UHP summer category, the N’Fera SU1 delivers a rare combination: the performance credentials of a track-oriented summer tire with enough daily-driving refinement to make it a practical choice for street use on sports cars, luxury coupes, and custom builds.

    Available in 68 sizes spanning 16-inch through 24-inch rim diameters in W and Y speed ratings with a consistent UTQG of 300 AA A across all sizes, the N’Fera SU1 offers one of the broadest size ranges of any UHP summer tire in NEXEN’s lineup, covering popular sport performance fitments from compact sport coupes all the way to custom large-wheel builds on 22-inch and 24-inch diameter wheels.

    N’Fera SU1 Performance Ratings

    The SU1’s performance profile is defined by perfect scores in the two categories that matter most for a UHP summer tire, handling and braking, with supporting ratings that honestly reflect the trade-offs inherent in a grip-optimized compound.

    Handling, Rated 10/10

    A perfect 10 out of 10 for handling is the SU1’s headline achievement and the result of deliberate engineering at the shoulder. By increasing shoulder block stiffness, pressure is distributed evenly across the contact patch during cornering, ensuring maximum lateral grip and steering precision when the driver demands the most from the tire. The SU1 stays planted and communicative through corners, delivering the kind of feedback that allows confident, controlled driving at the limits of grip.

    Braking, Rated 10/10

    A matching perfect braking score reflects the SU1’s ability to translate its UTQG AA traction grade, the highest available, into real-world stopping performance. The three main grooves and semi-groove design that enhance wet-road handling also contribute to braking confidence in wet conditions, evacuating water from beneath the contact patch to maintain rubber-to-road contact under hard deceleration. On dry pavement, the soft, high-grip compound generates maximum friction force during braking, delivering the short stopping distances that sport drivers and track users demand.

    Comfort, Rated 9/10

    A comfort score of 9 out of 10 is genuinely exceptional for a UHP summer tire with a UTQG treadwear rating of 300. Most tires in this grip category trade ride quality aggressively to achieve their performance numbers, but the SU1 maintains a 9 out of 10 comfort rating that makes it a realistic daily driver for sport vehicle owners who want a single tire to serve both weekend performance and weekday commuting. Real-world owner feedback confirms this: one Honda Civic Type R owner who needed a non-track-day street set specifically chose the SU1 and described being impressed after 600 miles of break-in with how well the tires gripped, and noted he would buy them again as a dedicated street set.

    Tread Life, Rated 7/10

    A tread score of 7 out of 10, paired with a UTQG treadwear rating of 300 AA A, is the honest performance-longevity trade-off of a high-grip summer tire with a soft, adhesive compound. The SU1 is backed by a 25,000-mile tread wear warranty, appropriate for a tire prioritizing grip over longevity, and its AA traction grade confirms that every mile of tread life is delivering maximum available grip. Drivers who rotate regularly and maintain proper inflation can extend the SU1’s practical tread life within the expected range for its category.

    Fuel Efficiency, Rated 7/10

    A fuel efficiency score of 7 out of 10 reflects the SU1’s soft, high-grip compound, which inherently carries higher rolling resistance than touring or grand touring tires. For a UHP summer tire used on performance vehicles where driver engagement and safety under hard driving outweigh fuel economy considerations, this is the expected and appropriate trade-off.

    Three Grooves, One Semi-Groove & Split Surface Siping, Wet Weather Engineering

    The SU1’s wet-weather performance is built around three distinct engineering elements that work together to maintain grip when rain falls. The three main grooves provide the primary drainage channels that rapidly route water away from the contact patch as the tire rolls, preventing water accumulation beneath the contact area and reducing hydroplaning risk at performance speeds. The single semi-groove supplements this drainage with an additional channeling path that handles moderate water volumes and improves directional stability in wet conditions. Split surface siping, sipes that vary in depth and angle across the tread block surface, generates additional biting edges that grip wet pavement at the micro-texture level, providing the traction needed for both braking and cornering on rain-slicked surfaces. Together, these three features make the SU1 the tire NEXEN describes as ready for a sudden storm, not just capable in light rain, but engineered for genuine wet-road performance at UHP speeds.

    68 Sizes, From 16-Inch Sport Compacts to 24-Inch Custom Builds

    The N’Fera SU1’s 68-size lineup is one of the most comprehensive in the UHP summer category, covering 16-inch through 24-inch rim diameters with widths from 195mm through 295mm and aspect ratios as low as 25-series on select 20-inch through 24-inch sizes. Key highlights include wide popular 18-inch sport performance fitments from 215/35R18 through 285/35R18, comprehensive 19-inch and 20-inch coverage for modern performance cars, and large-diameter specialty sizes in 22-inch and 24-inch for custom builds, including 295/25R22, 255/30R24, 275/25R24, and 275/30R24, that address a fitment need few UHP summer competitors cover. W speed ratings are available on select 16-inch, 17-inch, 18-inch, and 19-inch sizes; Y speed ratings dominate the lineup from 17-inch through 24-inch, certifying sustained operation beyond 186 mph on the vast majority of available sizes.

    N’Fera SU1 Warranty, NEXEN Total Coverage

    The N’Fera SU1 is backed by NEXEN’s Total Coverage Warranty, a package that goes beyond what most UHP summer tires offer. It includes a 25,000-mile tread wear warranty, road hazard coverage through 2/32″ tread depth or 1 year, 36 months of roadside assistance, and a 60-day / 1,000-mile free trial period. The inclusion of a mileage warranty and road hazard coverage on a UTQG 300 UHP summer tire is a meaningful commitment that sets the SU1 apart from many competitors in this category.

    FAQs: Ultra High Performance Tire for Summer Driving

    What type of tire is the NEXEN N’Fera SU1?

    The NEXEN N’Fera SU1 is an ultra-high-performance (UHP) summer tire designed for sports cars, luxury coupes, performance sedans, and custom builds. It earns a perfect 10 out of 10 scores for both handling and braking, a 9 out of 10 comfort score, carries a UTQG rating of 300 AA A across all sizes, and is available in W and Y speed ratings across 68 sizes from 16-inch to 24-inch rim diameters. It is backed by a 25,000-mile tread wear warranty and includes road hazard coverage.

    Is the N’Fera SU1 a good daily driver?

    Yes, within the expectations appropriate for a UHP summer tire. The SU1’s 9 out of 10 comfort score makes it notably more livable than many competitors in the UTQG 300 category, and real-world owners running it on performance street vehicles describe confident grip and satisfactory daily-driving composure after the break-in period. It should not be used in winter temperatures; the compound is not formulated for cold-weather use, and performance degrades significantly below approximately 45°F.

    What is the UTQG rating of the N’Fera SU1?

    The N’Fera SU1 carries a UTQG rating of 300 AA A across all 68 sizes in the lineup. The 300 treadwear figure indicates a soft, high-grip compound that prioritizes traction over longevity. The AA traction grade is the highest available, confirming maximum wet and dry surface grip. The A temperature grade reflects strong heat resistance at sustained high speeds, critical for a tire used on vehicles capable of extended high-speed operation.

    What speed ratings does the N’Fera SU1 come in?

    The N’Fera SU1 is available in W and Y speed ratings. W-rated sizes are certified for sustained speeds up to 168 mph and appear primarily in the 16-inch, 17-inch, 18-inch, and 19-inch portions of the lineup. Y-rated sizes are certified for sustained speeds beyond 186 mph and are available across the majority of the lineup from 17-inch through 24-inch, making the SU1 one of the few tires to offer Y-rated UHP summer performance in 22-inch and 24-inch large-diameter fitments.

    Does the N’Fera SU1 come with a tread wear warranty?

    Yes. The N’Fera SU1 is backed by a 25,000-mile tread wear warranty under NEXEN’s Total Coverage Warranty, notable for a UTQG 300 UHP summer tire, as many competitors in this category offer no mileage warranty. It also includes road hazard coverage through 2/32″ tread depth or 1 year, 36 months of roadside assistance, and a 60-day / 1,000-mile free trial period.

    Can I use the N’Fera SU1 in winter or cold weather?

    No. The N’Fera SU1 is a dedicated summer tire with a compound formulated for warm-weather performance. In cold temperatures, generally below 45°F, the compound stiffens significantly, reducing grip and increasing stopping distances. Running the SU1 in winter conditions or below its compound’s operating temperature threshold is unsafe. Drivers in regions with cold winters should swap to an all-season or dedicated winter tire during cold months and store the SU1 until temperatures return to summer ranges.

    What makes the N’Fera SU1 good in wet conditions?

    The SU1’s wet-weather capability is built around three main grooves, one semi-groove, and split surface siping, all working together to evacuate water from the contact patch, maintain rubber-to-road contact, and generate biting-edge grip on wet surfaces during both braking and cornering. Its UTQG AA traction grade confirms the highest available wet-surface grip standard, and its perfect 10 out of 10 braking score reflects this wet-road engineering commitment at the measured performance level.

    Where can I buy the NEXEN N’Fera SU1?

    The N’Fera SU1 is available through NEXEN’s authorized dealer network across the United States. Use the Dealer Finder tool at nexentireusa.com to locate the nearest retailer carrying the SU1 in your vehicle’s fitment size and speed rating.