NT555 G2

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 255/50ZR17 size

In the size code 255/50R17, 255 is the section width in millimetres (about 10"). 50 is the aspect ratio — the sidewall height is 50% of the width, or roughly 127.5 mm. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 27".

The load index 101 means each tire supports up to 1,819 lbs — about 7,276 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 $148.50 per tire, a full set of four costs $594.00. That sits close to the average for the 3 tires we stock in this size.