Sumitomo HTR55 HTR Z5 245/45ZR17 99Y Ultra High Performance Summer Tire

The Sumitomo HTR Z5 is an ultra high performance summer tire designed for drivers of sports cars, sporty coupes, and performance sedans seeking responsive high-speed handling and reliable traction in warm, dry, and wet conditions. This tire features an aggressive summer compound molded into an asymmetric, five-rib tread pattern that delivers the performance enthusiasts demand at a competitive price point.

Key Features:

• Continuous center rib aids stability and improves steering response, while substantial shoulders improve lateral grip
• Wide circumferential grooves evacuate water from the tread area for advanced hydroplaning resistance
• Internal construction includes a nylon casing with two steel belts, spiral wound nylon cap layer, and a hard apex that strengthens the shoulder and sidewall
• Increased shoulder and contact patch ensures even distribution of pressure to prevent irregular wear and improve handling performance
• Advanced tread compound enables quick and powerful wet braking
• Optimized tread rigidity provides predictable high-speed stability

The HTR Z5 delivers cornering, braking, and steering response performance that are almost at racetrack level, while maintaining comfortable and quiet highway manners with civilized behavior and good isolation of road bumps. Like all Ultra High Performance Summer tires, the HTR Z5 is not intended to be serviced, stored, or driven in near- and below-freezing temperatures, through snow or on ice. This 245/45ZR17 size features a 99Y service description with a Y speed rating for speeds up to 186 mph and a load capacity of 1,653 lbs per tire.