Sumitomo HTR Z5 255/45ZR18 XL 103Y Ultra High Performance Summer Tire HTR21

Ready to truly feel the road? The Sumitomo HTR Z5 255/45ZR18 XL 103Y Ultra High Performance Summer Tire, model HTR21, is engineered for drivers who demand exhilarating performance and precise control when the weather heats up. As a seasoned technician, I’ve seen firsthand how Sumitomo consistently blends advanced technology with real-world driving needs, and this tire is no exception. The HTR Z5 isn’t just a tire; it’s a meticulously crafted component designed to elevate your driving experience.

Its “Y” speed rating signifies it’s built to perform safely at speeds exceeding 186 mph (300 km/h), making it a serious contender for high-performance sport coupes and sedans. The XL (Extra Load) designation means enhanced durability and load-carrying capacity, providing peace of mind for more robust vehicles or aggressive driving styles. Experience exceptional dry grip, confident wet traction, and steering response that turns every drive into an event. This is your ultimate go-to tire for the summer months, delivering the exhilarating connection and control you’ve been looking for.

Features

• Advanced silica tread compound for superior grip in warm conditions
• Optimized directional tread pattern for confident wet handling and hydroplaning resistance
• Enhanced shoulder blocks for increased cornering stability and precise steering response
• Reinforced internal structure for high-speed durability and consistent performance

Technical Specifications

• Tire Name: Sumitomo HTR Z5
• Size: 255/45ZR18
• Load Index: 103 (1874 lbs per tire)
• Speed Rating: Y (186+ mph / 300+ km/h)
• Service Type: Ultra High Performance Summer
• Load Type: XL (Extra Load)
• Model Identifier: HTR21