Nitto

NT555 G2

Name: Nitto NT555 G2 255/45ZR17 XL
Brand: Nitto
SKU: 211360
Price: 139.50 USD
Availability: InStock

255/45ZR17 XL

$139.50/tire $186.00

Set of 4: $558.00

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Specifications

Size	255/45ZR17 XL NT555 G2
Width	255 mm
Aspect ratio	45
Rim diameter	R17
Load index	102
Speed rating	W
Load range	XL

UTQG	320 AA A
Tread depth	10.2/32"
Weight	28.13 lbs
Max pressure	50 psi
Severe snow (3PMSF)	No
Run-flat	No

About the Nitto NT555 G2

Summer Ultra High Performance Passenger Car tire.

Features

* Larger tread blocks for 275mm section width and greater* Twin center ribs* Large tapered block* 4-circumferential grooves* Reinforced shoulder tread blocks* High stiffness and high silica compound* Nitto Passenger and Light Truck Tire Limited Warranty

Benefits

* Enhanced traction for rear tires of vehicles with staggered fitments and high horsepower* Tire sizes with 275mm and greater section width have larger tread blocks in comparison to tires with 265mm and narrower section width* For increased dry traction and straight-line stability* Increased grip capabilities and better cornering stability* Center grooves and shoulder grooves aid water evacuation and wet handling* Improves dry and wet cornering grip* For higher compound rigidity during cornering, resulting in better handling capabilities in both wet and dry

Understanding the 255/45ZR17 XL size

In the size code 255/45R17, 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. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 26".

The load index 102 means each tire supports up to 1,874 lbs — about 7,496 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.

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 $139.50 per tire, a full set of four costs $558.00. That is about 18% below the average price of the 7 tires we stock in this size.

Frequently asked questions

What does the tire size 255/45R17 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 R17 indicates radial construction for a 17-inch wheel. Overall diameter is approximately 26 inches.

What are the load and speed ratings of the Nitto NT555 G2 255/45ZR17 XL?

Its load index of 102 allows up to 1,874 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 Nitto NT555 G2 255/45ZR17 XL tires cost?

A single tire is $139.50 and a set of four is $558.00.

Does the NT555 G2 come in other sizes?

Yes — we stock 64 additional NT555 G2 sizes besides 255/45ZR17 XL. Fit only a size approved for your vehicle.