Fullway HS998 Winter Tire | Severe Snow Performance
The Fullway HS998 is engineered for severe winter conditions where reliable traction is non-negotiable. This studless winter tire features a high-void directional tread pattern that channels snow, slush, and water away from the contact patch while maintaining continuous edge contact with ice and packed snow.
We designed the HS998 with a specialized silica-enriched compound that remains pliable in sub-freezing temperatures, allowing the tread blocks to conform to road irregularities and grip ice surfaces. The aggressive shoulder blocks and deep circumferential grooves provide predictable handling through powder, sleet, and freezing rain, while integrated 3D sipes create thousands of biting edges that lock into slippery surfaces without compromising block stability during cornering.
Built for drivers who refuse to compromise winter safety, the HS998 meets the severe snow service requirements for Three-Peak Mountain Snowflake (3PMSF) certification. Whether you're navigating morning commutes on icy highways or weekend drives through mountain passes, our HS998 delivers the confidence you need when temperatures drop.
HS998 performance specifications
Tread compound and construction
The compound formulation in Fullway HS998 tires prioritizes cold-weather performance over longevity, using a silica and natural rubber blend that resists hardening when ambient temperatures plummet. Traditional all-season compounds crystallize below 45°F, losing their ability to conform to microscopic road textures.
Our winter-specific compound maintains elasticity down to extreme sub-zero conditions, allowing the tire to deform around ice crystals and snow particles for mechanical grip. The internal structure incorporates twin steel belts beneath the tread cap, providing puncture resistance and maintaining tread block stability during aggressive acceleration and braking on slippery surfaces.
Sizing and vehicle compatibility
We manufacture the HS998 in 38 different size configurations covering 15-inch through 20-inch wheel diameters. Load index ratings span from 91 (1,356 lbs per tire) to 106 (2,094 lbs per tire), accommodating everything from compact sedans to full-size crossovers and half-ton pickup trucks.
Before ordering, verify your vehicle’s sidewall placard or owner’s manual for the recommended tire size, load index, and speed rating. The HS998 carries a T-speed rating (118 mph maximum sustained speed), which exceeds the requirements for winter driving in most regions but may fall below the OEM specification for high-performance vehicles.
Winter driving performance characteristics
The HS998 earns its 3PMSF rating through controlled testing on packed snow surfaces, where it must deliver at least 110% of the traction produced by a reference all-season tire. In real-world conditions, drivers report confident braking on ice-covered intersections and predictable turn-in response on snow-packed secondary roads.
The high silica content does create a softer tread compound than summer or all-season alternatives, which translates to accelerated wear if you run the HS998 year-round. We recommend installing these tires once daytime temperatures consistently fall below 45°F and removing them when spring temperatures stabilize above that threshold. Running winter tires in warm weather not only shortens their lifespan but can also increase braking distances on hot, dry pavement due to excessive tread squirm.
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Common questions about the HS998 winter tire
Yes, the HS998 carries a T-speed rating certifying safe operation up to 118 mph. This exceeds typical winter driving speeds and accommodates highway travel in most regions.
The reinforced belt package maintains tread stability even during sustained high-speed cruising on cleared interstates. That said, always reduce speed for current road conditions—no tire can overcome the laws of physics on ice regardless of its speed rating.
The studless HS998 relies on tread compound flexibility and sipe density for ice traction, while studded tires use metal pins that mechanically bite into frozen surfaces. Studless designs like the HS998 offer quieter operation, no pavement damage, and legality in all regions.
Studded tires provide superior grip on pure ice but lose that advantage on wet or dry pavement. For mixed winter conditions including snow, slush, and occasional ice, the HS998 delivers more balanced performance. Drivers in extreme-ice climates may prefer our <a href="/fullway-hs266/">HS266 studded option</a> for maximum ice traction.
We strongly recommend installing winter tires on all four positions simultaneously. Mounting HS998 tires only on the drive axle creates a traction imbalance that can trigger unpredictable oversteer or understeer during turns and emergency maneuvers.
Front-wheel-drive vehicles with winter tires only up front will experience unstable rear-end behavior during braking. Rear-wheel-drive or all-wheel-drive vehicles with winter tires only in back suffer compromised steering control. The cost of two additional tires is negligible compared to the safety risk of mismatched seasonal rubber.
The HS998 is available in fitments for 15-inch, 16-inch, 17-inch, 18-inch, 19-inch, and 20-inch wheel diameters. Within each diameter, we offer multiple width and sidewall aspect ratio combinations to match common OEM specifications.
Your vehicle's door placard lists the factory tire size—match all four numbers (width, aspect ratio, diameter, load index) when selecting your HS998 size. Our customer service team can cross-reference your vehicle year, make, and model to confirm the correct fitment if your placard is illegible.
Expect 3-5 winter seasons from a set of HS998 tires under typical use—approximately 20,000-30,000 miles total if you remove them each spring. The softer winter compound wears faster than all-season rubber, especially if driven on dry pavement above 45°F.
Tread life depends heavily on driving style, vehicle weight, alignment condition, and seasonal storage practices. Aggressive acceleration, heavy loads, and year-round use can halve the expected lifespan. Replace any winter tire once tread depth reaches 6/32 inch, as snow evacuation efficiency drops sharply below that threshold even though the tire remains legally usable.
No, the HS998 delivers full traction capability immediately after mounting and inflation. Unlike studded tires that require 500 miles of gentle driving to properly seat the metal studs, studless winter tires perform at maximum effectiveness from the first rotation.
That said, we recommend driving cautiously for the first 50 miles on any new tire to allow the lubricants used during manufacturing to fully wear off the tread surface. This brief acclimation period applies to all tire types and simply ensures optimal grip chemistry from the start.
Yes, the HS998 accepts standard tire chains when regulations require additional traction devices. Ensure your chains match your installed tire size and confirm your vehicle has adequate wheel-well clearance before installation.
Chains should be a last resort for the most extreme conditions—the HS998's 3PMSF certification means it already meets severe snow performance standards. Running chains on cleared pavement damages both the chains and the tire tread, so remove them as soon as conditions improve. Our <a href="/fullway-hs288/">HS288 performance winter tire</a> offers similar chain compatibility for drivers seeking sportier handling dynamics.