Sumitomo HTR85 HTR Z5 265/35R18 97Y 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. An aggressive summer compound is molded into an asymmetric, five-rib tread pattern that delivers exceptional grip and cornering capability.

Key Performance Features:

• Continuous center rib aids stability and improves steering response, while substantial shoulders improve lateral grip
• Four wide circumferential grooves and lateral shoulder grooves evacuate standing water from the footprint for 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 delivers quick and powerful wet braking with predictable high-speed stability

The HTR Z5 is stable at high speeds and delivers cornering, braking, and steering response performance that are almost at racetrack level. That performance doesn't mean a sacrifice in road manners or ride quality—the HTR Z5 is a comfortable and quiet tire on the highway, with civilized behavior and good isolation of road bumps.

Important: Like all ultra-high-performance summer tires, the HTR Z5 is not intended to be serviced, stored, nor driven in near- and below-freezing temperatures, through snow or on ice. The Sumitomo HTR Z5 isn't covered by a manufacturer's tread life warranty, but Sumitomo does offer comprehensive coverage against defects.