The SEYOUN SYT990 is a premier, armor-reinforced all-steel radial drive tire precision-built for heavy commercial trucks demanding extreme torque and ultimate physical protection in severe off-road, mining, and timber logging terrains. Engineered with an extra-deep tread depth, an interconnected central S-block geometry, and anti-slip micro-textured block surfaces, the SYT990 delivers unmatched forward traction over loose or slippery soils while actively resisting catastrophic tread chunking and stone punctures. It is the definitive investment for severe-duty fleet operations aiming to maximize machine uptime and achieve an exceptional lifespan in the planet’s harshest working environments.
The core traction zone of the SYT990 utilizes a massive, continuous S-shaped block matrix running through the center. This design distributes tremendous drive-axle torque evenly across the tread footprint. Enhanced with an advanced surface micro-texture, it dramatically improves initial tire biting grip on wet rocks and loose mud while preventing individual blocks from tearing or chipping under high-load acceleration.
The outer shoulders are engineered with extra-wide, deep transverse lug grooves that form a high-void evacuation matrix. As the drive axle spins, this configuration acts as a dynamic self-cleaning system that quickly flushes out thick mud, clay, and trapped debris, guaranteeing unyielding lateral stability and massive climbing power when pulling heavy loads up steep, muddy mining ramps.
Compounded with SEYOUN’s proprietary, high-density cut-and-chip resistant compound, the SYT990 forms a resilient layer against sharp external hazards. This specialized rubber architecture deflects jagged granite, iron shards, and construction debris, significantly mitigating deep groove cracking and stone-drilling into the steel belts.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) |
Load Capacity(kg) | Inflation Pressure(kpa) | Section Width (mm) |
Standard Rim (inch) |
Tread Depth (mm) | |
| Single | Dual | |||||||||
| SYT990 | 8.25R16LT | 18 | 132/128F | 865 | 2000 | 1800 | 870 | 235 | 6.50H | 19 |
| Available Sizes | ||||||
| 6.50R16LT | 9.00R20 | 11R24.5 | 13R22.5 | 245/70R17.5 | 295/60R22.5 | 295/75R22.5 |
| 7.00R16LT | 10.00R20 | 12.00R20 | 215/75R17.5 | 245/70R19.5 | 275/80R22.5 | 315/70R22.5 |
| 7.50R16LT | 11.00R20 | 12.00R24 | 225/80R17.5 | 265/70R19.5 | 295/80R22.5 | 385/65R22.5 |
| 8.25R16LT | 11R22.5 | 12R22.5 | 235/75R17.5 | 275/70R22.5 | 315/80R22.5 | 205/85R16LT |
1.High Wear Resistance 4.Long Mileage Performance
Special tread compound design extends tire life and reduces cost per km. Optimized footprint distbution promotes even wear and longer mileage.
2.Strong Traction Performance 5.Fuel Saving
Deep grooves and block design provide excellent grip on wet and dey roads. Low roling resistance design helps reduce fuel consumption.
3.High Load Capacity 6.Safe & Reliable
Reinforced carcass structure enpures high load capacity and durabllity. Superior stablity and braking performance ensure driving safety.
As a rubber production combined with steel and other materials, tires can be eroded slowly by chemicals, oil, heat, and ozone. The main raw materials of tires include natural rubber and synthetic rubber from petroleum products, so tires exposed to high temperatures heat or fire sources will cause fires that are difficult to extinguish.
Tires should be stored in a cool, dry, clean warehouse to prevent rain, dust, and light. Tires should be placed away from electric generators/motors and sources of heat such as hot pipes. Storage surfaces should be clean and free of grease, gasoline, diesel fuel, or other substances that can deteriorate the rubber. Please rotate tires every month if they are upright in storage. If tires have to be stored outdoors, the place should be:
Improper storage can damage your tires in ways that may not be visible and can lead to a
failure resulting in serious personal injury or death.
Avoid mixing with trucks transporting oil and chemicals. Tire transport vehicles should be equipped with adequate fire equipment. When using a forklift to handle truck tires, install the correct accessories for the forklift, such as tire stackers, tire handlers, etc. Any improper handling ways may cause damage to the tire. For example, the keen-edged forks can bring damage to the bead if you use the forklift without proper accessories.
Proper mounting procedures must be followed or sudden tire destruction, personal injury or death may result. Tire mounting must be done only by personnel trained, supervised and equipped according to local regulations and following the processes requirement of the industries. Always inflate tire/rim assembly in an approved safety cage or equivalent restraining device
SYT990 Truck Tire OverviewSYT990 Tread Pattern DesignThe core traction zone of the SYT990 utilizes a massive, continuous S-shaped block matrix running through the center. This design distributes tremendous drive-axle torque evenly across the tread footprint. Enhanced with an advanced surface micro-texture, it dramatically improves initial tire biting grip on wet rocks and loose mud while preventing individual blocks from tearing or chipping under high-load acceleration.
Compounded with SEYOUN’s proprietary, high-density cut-and-chip resistant compound, the SYT990 forms a resilient layer against sharp external hazards. This specialized rubber architecture deflects jagged granite, iron shards, and construction debris, significantly mitigating deep groove cracking and stone-drilling into the steel belts.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) | Load Capacity(kg) | Inflation Pressure(kpa) | Section Width (mm) | Standard Rim (inch) | Tread Depth (mm) | |
| Single | Dual | |||||||||
| SYT990 | 8.25R16LT | 18 | 132/128F | 865 | 2000 | 1800 | 870 | 235 | 6.50H | 19 |
| Available Sizes | ||||||
| 6.50R16LT | 9.00R20 | 11R24.5 | 13R22.5 | 245/70R17.5 | 295/60R22.5 | 295/75R22.5 |
| 7.00R16LT | 10.00R20 | 12.00R20 | 215/75R17.5 | 245/70R19.5 | 275/80R22.5 | 315/70R22.5 |
| 7.50R16LT | 11.00R20 | 12.00R24 | 225/80R17.5 | 265/70R19.5 | 295/80R22.5 | 385/65R22.5 |
| 8.25R16LT | 11R22.5 | 12R22.5 | 235/75R17.5 | 275/70R22.5 | 315/80R22.5 | 205/85R16LT |
1.High Wear Resistance 4.Long Mileage Performance Special tread compound design extends tire life and reduces cost per km. Optimized footprint distbution promotes even wear and longer mileage. 2.Strong Traction Performance 5.Fuel Saving Deep grooves and block design provide excellent grip on wet and dey roads. Low roling resistance design helps reduce fuel consumption.
3.High Load Capacity 6.Safe & Reliable Reinforced carcass structure enpures high load capacity and durabllity. Superior stablity and braking performance ensure driving safety.
As a rubber production combined with steel and other materials, tires can be eroded slowly by chemicals, oil, heat, and ozone. The main raw materials of tires include natural rubber and synthetic rubber from petroleum products, so tires exposed to high temperatures heat or fire sources will cause fires that are difficult to extinguish.
Tires should be stored in a cool, dry, clean warehouse to prevent rain, dust, and light. Tires should be placed away from electric generators/motors and sources of heat such as hot pipes. Storage surfaces should be clean and free of grease, gasoline, diesel fuel, or other substances that can deteriorate the rubber. Please rotate tires every month if they are upright in storage. If tires have to be stored outdoors, the place should be:
Improper storage can damage your tires in ways that may not be visible and can lead to a
failure resulting in serious personal injury or death.
Avoid mixing with trucks transporting oil and chemicals. Tire transport vehicles should be equipped with adequate fire equipment. When using a forklift to handle truck tires, install the correct accessories for the forklift, such as tire stackers, tire handlers, etc. Any improper handling ways may cause damage to the tire. For example, the keen-edged forks can bring damage to the bead if you use the forklift without proper accessories.
Proper mounting procedures must be followed or sudden tire destruction, personal injury or death may result. Tire mounting must be done only by personnel trained, supervised and equipped according to local regulations and following the processes requirement of the industries. Always inflate tire/rim assembly in an approved safety cage or equivalent restraining device
SYT990 Truck Tire OverviewSYT990 Tread Pattern DesignThe core traction zone of the SYT990 utilizes a massive, continuous S-shaped block matrix running through the center. This design distributes tremendous drive-axle torque evenly across the tread footprint. Enhanced with an advanced surface micro-texture, it dramatically improves initial tire biting grip on wet rocks and loose mud while preventing individual blocks from tearing or chipping under high-load acceleration.
Compounded with SEYOUN’s proprietary, high-density cut-and-chip resistant compound, the SYT990 forms a resilient layer against sharp external hazards. This specialized rubber architecture deflects jagged granite, iron shards, and construction debris, significantly mitigating deep groove cracking and stone-drilling into the steel belts.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) | Load Capacity(kg) | Inflation Pressure(kpa) | Section Width (mm) | Standard Rim (inch) | Tread Depth (mm) | |
| Single | Dual | |||||||||
| SYT990 | 8.25R16LT | 18 | 132/128F | 865 | 2000 | 1800 | 870 | 235 | 6.50H | 19 |
| Available Sizes | ||||||
| 6.50R16LT | 9.00R20 | 11R24.5 | 13R22.5 | 245/70R17.5 | 295/60R22.5 | 295/75R22.5 |
| 7.00R16LT | 10.00R20 | 12.00R20 | 215/75R17.5 | 245/70R19.5 | 275/80R22.5 | 315/70R22.5 |
| 7.50R16LT | 11.00R20 | 12.00R24 | 225/80R17.5 | 265/70R19.5 | 295/80R22.5 | 385/65R22.5 |
| 8.25R16LT | 11R22.5 | 12R22.5 | 235/75R17.5 | 275/70R22.5 | 315/80R22.5 | 205/85R16LT |
1.High Wear Resistance 4.Long Mileage Performance Special tread compound design extends tire life and reduces cost per km. Optimized footprint distbution promotes even wear and longer mileage. 2.Strong Traction Performance 5.Fuel Saving Deep grooves and block design provide excellent grip on wet and dey roads. Low roling resistance design helps reduce fuel consumption.
3.High Load Capacity 6.Safe & Reliable Reinforced carcass structure enpures high load capacity and durabllity. Superior stablity and braking performance ensure driving safety.
As a rubber production combined with steel and other materials, tires can be eroded slowly by chemicals, oil, heat, and ozone. The main raw materials of tires include natural rubber and synthetic rubber from petroleum products, so tires exposed to high temperatures heat or fire sources will cause fires that are difficult to extinguish.
Tires should be stored in a cool, dry, clean warehouse to prevent rain, dust, and light. Tires should be placed away from electric generators/motors and sources of heat such as hot pipes. Storage surfaces should be clean and free of grease, gasoline, diesel fuel, or other substances that can deteriorate the rubber. Please rotate tires every month if they are upright in storage. If tires have to be stored outdoors, the place should be:
Improper storage can damage your tires in ways that may not be visible and can lead to a
failure resulting in serious personal injury or death.
Avoid mixing with trucks transporting oil and chemicals. Tire transport vehicles should be equipped with adequate fire equipment. When using a forklift to handle truck tires, install the correct accessories for the forklift, such as tire stackers, tire handlers, etc. Any improper handling ways may cause damage to the tire. For example, the keen-edged forks can bring damage to the bead if you use the forklift without proper accessories.
Proper mounting procedures must be followed or sudden tire destruction, personal injury or death may result. Tire mounting must be done only by personnel trained, supervised and equipped according to local regulations and following the processes requirement of the industries. Always inflate tire/rim assembly in an approved safety cage or equivalent restraining device
