Toyo Tires 174570 Observe GSi-6 HP Studless Winter Tire 255/65R18 111H

The Toyo Observe GSi-6 HP is a studless performance winter tire engineered to deliver exceptional traction and control in harsh winter conditions. Designed for passenger cars, sports coupes, sedans, CUVs, and SUVs, this tire combines advanced winter technologies with confident all-weather handling capability.

Advanced Winter Performance Technology:

• Microbit Technology - Microscopic crushed walnut shells embedded in the tread compound bite into ice for enhanced grip without metal studs
• High-Density 3D Sipes - Thousands of interlocking sipes provide biting edges for superior traction on ice and snow while maintaining block rigidity
• Directional Tread Design - Staggered tread blocks and four circumferential grooves efficiently evacuate water and slush to resist hydroplaning
• High-Grip Silica Compound - Stays flexible in cold temperatures for improved wet and dry performance on cold pavement

Key Design Features:

• Serrated stability rib enhances steering response and cornering stability
• Split offset shoulder blocks improve snow and ice traction
• Plow edge and tapered shoulder wedge design effectively clear snow from the contact patch
• Large inner blocks with sawtoothed edges provide additional biting surfaces
• Three Peak Mountain Snowflake (3PMSF) certified for severe snow conditions

The 255/65R18 size features a 111H service rating (2,403 lbs maximum load capacity per tire at 51 PSI, H-speed rated to 130 mph). With an overall diameter of 31.1 inches and section width of 10.2 inches, this tire fits 18-inch wheels with recommended rim widths of 7.0 to 9.0 inches.