HTR Z5
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Specifications
| Size | 295/30ZR18 XL HTR Z5 |
|---|---|
| Width | 295 mm |
| Aspect ratio | 30 |
| Rim diameter | R18 |
| Load index | 98 |
| Speed rating | Y |
| Load range | XL |
| UTQG | 320 AA A |
|---|---|
| Tread depth | 10/32" |
| Weight | 29.5 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Sumitomo HTR Z5
Summer Ultra High Performance Passenger Car tire.
Features
* Advanced tread compound* Wide circumferential grooves* Optimized tread rigidity* More than 50 sizes, from 17”- 20”, in Y speed ratings* Free Defect Replacement for Life of Usable Tread
Benefits
* Enables quick and powerful wet braking* Enhance wet road traction and boost hydroplaning resistance* Provides predictable high-speed stability* Excellent segment coverage
Understanding the 295/30ZR18 XL size
In the size code 295/30R18, 295 is the section width in millimetres (about 11.6"). 30 is the aspect ratio — the sidewall height is 30% of the width, or roughly 88.5 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 25".
The load index 98 means each tire supports up to 1,653 lbs — about 6,612 lbs across a full set of four. The speed symbol Y certifies the tire to 186 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
Tread life and grip ratings
This tire carries a UTQG rating of 320 AA A. The treadwear grade of 320 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).
Price and value
At $168.74 per tire, a full set of four costs $674.96. That is about 39% below the average price of the 11 tires we stock in this size.
Frequently asked questions
What does the tire size 295/30R18 mean?
295 is the section width in millimetres, 30 is the aspect ratio (sidewall height as a percentage of width, about 88.5 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 25 inches.
What are the load and speed ratings of the Sumitomo HTR Z5 295/30ZR18 XL?
Its load index of 98 allows up to 1,653 lbs per tire. Its speed rating of Y is certified to 186 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Sumitomo HTR Z5 295/30ZR18 XL tires cost?
A single tire is $168.74 and a set of four is $674.96.
Does the HTR Z5 come in other sizes?
Yes — we stock 53 additional HTR Z5 sizes besides 295/30ZR18 XL. Fit only a size approved for your vehicle.