Extensa HP II
🚚 Standard shipping across the country — delivered with DHL in 2-6 business days. 🔒 SSL-secured checkout.
↩️ Free returns within 30 days — unmounted tires, prepaid label, no return shipping cost.
Specifications
| Size | 255/45R18 XL Extensa HP Ii |
|---|---|
| Width | 255 mm |
| Aspect ratio | 45 |
| Rim diameter | R18 |
| Load index | 103 |
| Speed rating | W |
| Load range | XL |
| Season | All-Season |
|---|---|
| UTQG | 500 A A |
| Treadwear warranty | 45,000 miles |
| Tread depth | 9.7/32" |
| Weight | 28 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Toyo Extensa HP II
All-Season High Performance Passenger Car tire.
Features
* Unidirectional tread design* Optimized pattern arrangement with three variable pitch pattern* Single-cut and double-cut tapers* Full depth multi-wave sipes* Special silica compound* 500 Miles/45 Days Trial Offer* 45,000 Mile/72,000 Kilometer Limited Treadwear Warranty
Benefits
* Provides a perfect blend of all-season traction in a stylish package* Reduce pattern noise for a quieter, more comfortable drive* Optimize block stiffness to enhance braking performance* Minimize irregular wear for a smooth, quiet ride* Improve light snow traction* Provides good wet performance while maintaining tread life performance
Understanding the 255/45R18 XL size
In the size code 255/45R18, 255 is the section width in millimetres (about 10"). 45 is the aspect ratio — the sidewall height is 45% of the width, or roughly 114.8 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 27".
The load index 103 means each tire supports up to 1,929 lbs — about 7,716 lbs across a full set of four. The speed symbol W certifies the tire to 168 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
What the Toyo Extensa HP II is built for
The Toyo Extensa HP II is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. Fitment category: Passenger Car, Performance, HP.
Tread life and grip ratings
This tire carries a UTQG rating of 500 A A. The treadwear grade of 500 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 A 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 $151.60 per tire, a full set of four costs $606.40. That is about 13% below the average price of the 43 tires we stock in this size. Backed by a 45,000-mile treadwear warranty, that works out to roughly $13.48 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 255/45R18 mean?
255 is the section width in millimetres, 45 is the aspect ratio (sidewall height as a percentage of width, about 114.8 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 27 inches.
What are the load and speed ratings of the Toyo Extensa HP II 255/45R18 XL?
Its load index of 103 allows up to 1,929 lbs per tire. Its speed rating of W is certified to 168 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 Toyo Extensa HP II 255/45R18 XL tires cost?
A single tire is $151.60 and a set of four is $606.40, covered by a 45,000-mile treadwear warranty.
Does the Extensa HP II come in other sizes?
Yes — we stock 61 additional Extensa HP II sizes besides 255/45R18 XL. Fit only a size approved for your vehicle.