Sumitomo HTR Enhance CX2 255/55R18 XL HTR Enhance CX2
Sumitomo

HTR Enhance CX2

255/55R18 XL
$137.99/tire $183.99
Set of 4: $551.96
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size255/55R18 XL HTR Enhance CX2
Width255 mm
Aspect ratio55
Rim diameterR18
Load index109
Speed ratingV
Load rangeXL
UTQG600 A A
Treadwear warranty65,000 miles
Tread depth11/32"
Weight37.5 lbs
Max pressure50 psi
Severe snow (3PMSF)No
Run-flatNo

About the Sumitomo HTR Enhance CX2

All-Season Passenger SUV/CUV Touring tire.

Features

* 3D zig-zag sipes* Optimized contact patch* Cross-designed chamfer* Bending sipe technology* Shoulder blocks* M+S Rated* 65,000-Mile Treadwear Mileage Warrant for T, H & V-Rated* 2-Year, 24/7 Tire Roadside Assistance* Free 45-Day Test Drive* Free Defect Replacement for the Life of Usable Tread

Benefits

* Boost block stability and reduce irregular wear, while creating more biting edges and improving winter performance* Distributes road surface pressure evenly to provide extended tire life* Boosts traction and grip for better winter and wet-surface performance* Creates rigidity in center block to maintain stability, while providing crisp highway response and driving characteristics* Outside shoulder enhanced with integral lateral grooves to provide better wet handling and reduce road noise

Understanding the 255/55R18 XL size

In the size code 255/55R18, 255 is the section width in millimetres (about 10"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 140.3 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 29".

The load index 109 means each tire supports up to 2,271 lbs — about 9,084 lbs across a full set of four. The speed symbol V certifies the tire to 149 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 600 A A. The treadwear grade of 600 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 $137.99 per tire, a full set of four costs $551.96. That is about 27% below the average price of the 83 tires we stock in this size. Backed by a 65,000-mile treadwear warranty, that works out to roughly $8.49 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 255/55R18 mean?

255 is the section width in millimetres, 55 is the aspect ratio (sidewall height as a percentage of width, about 140.3 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 29 inches.

What are the load and speed ratings of the Sumitomo HTR Enhance CX2 255/55R18 XL?

Its load index of 109 allows up to 2,271 lbs per tire. Its speed rating of V is certified to 149 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 Enhance CX2 255/55R18 XL tires cost?

A single tire is $137.99 and a set of four is $551.96, covered by a 65,000-mile treadwear warranty.

Does the HTR Enhance CX2 come in other sizes?

Yes — we stock 24 additional HTR Enhance CX2 sizes besides 255/55R18 XL. Fit only a size approved for your vehicle.

Other sizes of this model

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