The SEYOUN SYT668 is a premium radial truck tire meticulously engineered for long-haul highway transportation and regional. Optimized specifically for steer and trailer positions, it is manufactured using advanced compounding technology and premium raw materials. The SYT668 delivers an exceptional balance of ultra-low rolling resistance, superior fuel economy, and outstanding rib stability. It represents the ultimate cost-per-mile solution for commercial fleets aiming to maximize tire life and minimize operational costs on long-distance routes.
SYT668 Tread Pattern DesignFeaturing a classic 5-rib design with four straight longitudinal grooves, the SYT668 is built for high-speed highway stability. This geometric structure reduces rolling resistance to boost fuel efficiency while ensuring exceptional directional tracking and precision handling for steer axles.
The optimized tread footprint distributes ground contact pressure evenly across the tire surface. Combined with decoupled outer shoulders, this design effectively combats common long-haul wear issues like river wear, shoulder scalloping, and irregular wiping, significantly extending the tire’s removal mileage.
The four deep, straight circumferential channels act as efficient water evacuation corridors. They rapidly disperse water from beneath the tread footprint to cut through water films, ensuring reliable braking and strong traction on both wet and dry roads.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) |
Load Capacity(kg) |
Inflation Pressure(kpa) |
Section Width(mm) |
Standard Rim(inch) |
|
| Single | Dual | ||||||||
| SYT668 | 11R22.5 | 18 | 149/146M | 1,054 | 3,250 | 3,000 | 900 | 279 | 8.25 |
| 11R24.5 | 16 | 149/146L | 1,100 | 3,250 | 3,000 | 830 | 279 | 8.25 | |
| 295/75R22.5 | 16 | 146/143L | 1015 | 3000 | 2750 | 830 | 293 | 9.00 | |
| 295/80R22.5 | 18 | 149/146M | 1,044 | 3,550 | 3,250 | 900 | 298 | 9.00 | |
| 315/80R22.5 | 20 | 160/157K | 1,087 | 4,500 | 4,125 | 970 | 312 | 9.00 | |
| 385/65R22.5 | 20 | 160K | 1,072 | 4,500 | 4,125 | 900 | 389 | 11.75 | |
| 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
SYT668 Tread Pattern DesignFeaturing a classic 5-rib design with four straight longitudinal grooves, the SYT668 is built for high-speed highway stability. This geometric structure reduces rolling resistance to boost fuel efficiency while ensuring exceptional directional tracking and precision handling for steer axles.
The optimized tread footprint distributes ground contact pressure evenly across the tire surface. Combined with decoupled outer shoulders, this design effectively combats common long-haul wear issues like river wear, shoulder scalloping, and irregular wiping, significantly extending the tire's removal mileage.
The four deep, straight circumferential channels act as efficient water evacuation corridors. They rapidly disperse water from beneath the tread footprint to cut through water films, ensuring reliable braking and strong traction on both wet and dry roads.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) | Load Capacity(kg) | Inflation Pressure(kpa) | Section Width(mm) | Standard Rim(inch) | |
| Single | Dual | ||||||||
| SYT668 | 11R22.5 | 18 | 149/146M | 1,054 | 3,250 | 3,000 | 900 | 279 | 8.25 |
| 11R24.5 | 16 | 149/146L | 1,100 | 3,250 | 3,000 | 830 | 279 | 8.25 | |
| 295/75R22.5 | 16 | 146/143L | 1015 | 3000 | 2750 | 830 | 293 | 9.00 | |
| 295/80R22.5 | 18 | 149/146M | 1,044 | 3,550 | 3,250 | 900 | 298 | 9.00 | |
| 315/80R22.5 | 20 | 160/157K | 1,087 | 4,500 | 4,125 | 970 | 312 | 9.00 | |
| 385/65R22.5 | 20 | 160K | 1,072 | 4,500 | 4,125 | 900 | 389 | 11.75 | |
| 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
SYT668 Tread Pattern DesignFeaturing a classic 5-rib design with four straight longitudinal grooves, the SYT668 is built for high-speed highway stability. This geometric structure reduces rolling resistance to boost fuel efficiency while ensuring exceptional directional tracking and precision handling for steer axles.
The optimized tread footprint distributes ground contact pressure evenly across the tire surface. Combined with decoupled outer shoulders, this design effectively combats common long-haul wear issues like river wear, shoulder scalloping, and irregular wiping, significantly extending the tire's removal mileage.
The four deep, straight circumferential channels act as efficient water evacuation corridors. They rapidly disperse water from beneath the tread footprint to cut through water films, ensuring reliable braking and strong traction on both wet and dry roads.
| Pattern | Size | PR | LI&SS | Overall Diameter(mm) | Load Capacity(kg) | Inflation Pressure(kpa) | Section Width(mm) | Standard Rim(inch) | |
| Single | Dual | ||||||||
| SYT668 | 11R22.5 | 18 | 149/146M | 1,054 | 3,250 | 3,000 | 900 | 279 | 8.25 |
| 11R24.5 | 16 | 149/146L | 1,100 | 3,250 | 3,000 | 830 | 279 | 8.25 | |
| 295/75R22.5 | 16 | 146/143L | 1015 | 3000 | 2750 | 830 | 293 | 9.00 | |
| 295/80R22.5 | 18 | 149/146M | 1,044 | 3,550 | 3,250 | 900 | 298 | 9.00 | |
| 315/80R22.5 | 20 | 160/157K | 1,087 | 4,500 | 4,125 | 970 | 312 | 9.00 | |
| 385/65R22.5 | 20 | 160K | 1,072 | 4,500 | 4,125 | 900 | 389 | 11.75 | |
| 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
