CoreScore N/A:
  • Participation of the tire models in professional tire tests and their test scores.
  • Consumer reviews on the top tire selling websites.
    We gather such data as the numbers of reviews and the ultimate score of the tire model on numerous tire-related websites such as amazon, tirerack, oponeo, simpletire,, tyrereviews, and others.
  • Reviews written by the visitors to our website

Value, max: 100

Popularity of the model 8:
  • Year of manufacture.
  • The premium brand factor .
  • The number of video reviews of the tire on .
  • The number of news items about the model .
  • The number of times the tire was involved in professional tire tests.
  • The fact of the tire being on the bestseller lists on such reputed websites as amazon, tirerack, oponeo, simpletire, and others.
  • The number of tire types and sizes .

Value, max: unlimited
Value, average: 27

Key Facts


We spent several hours reading reviews from experts and tire owners. In summary, this is what people think about Nitto NT555 EXT. You can agree with these conclusions by voting for any item:

Reasons to buy vote if agree

– The pleased car owners said that you could actually feel these tires gripping.
– The drivers said that they loved the unsurpassed blend of dry and wet street traction and handling provided by this tire.
– One user mentioned that this tire was the best choice if you want cheaper tires and good quality.

— Links to resources with reviews to which we referred.
— Add your comment if you have any notes or objections.

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The NT555 is an ultra high performance summer tire designed with the performance driver in mind. With increased traction and handling capabilities, the NT555 will get you off the line quickly, provide stability in the straights and confidence in the corners. Enjoy performance and prolonged treadlife.

  • Advanced tread compound does double duty by increasing dry traction and tread life
  • Large contact patch provides a superior tire-to-road ratio for better acceleration, braking, and cornering
  • Reinforced tread blocks further enhance the tire’s contact patch for increased handling

Detailed Information

Type and Size
Tire Model
Nitto NT555 EXT
Car Type
Rim Diameter
17 / 18 / 19 / 20 / 22 "
225 / 235 / 245 / 255 / 265 / 275 / 285 / 295 mm
Aspect Ratio
25 / 30 / 35 / 40 / 45 / 50 %
Special Features
Mud and Snow
Extra Load
Speed and Load
Speed Index
Z (max > 149 mph)
Load Index (max load for a tire)

Nitto NT555 EXT Sizes & Specifications

Rim Model Size Index Features
R17 235/45 R17 93Z 235/45 R17 93Z
R18 225/45 R18 95Z 225/45 R18 95Z
R18 245/40 R18 93Z 245/40 R18 93Z
R18 245/45 R18 100Z 245/45 R18 100Z
R18 255/35 R18 90Z 255/35 R18 90Z
R18 255/45 R18 103Z 255/45 R18 103Z
R18 265/50 R18 103Z 265/50 R18 103Z
R18 275/35 R18 95Z 275/35 R18 95Z
R18 275/40 R18 103Z 275/40 R18 103Z
R18 285/35 R18 97Z 285/35 R18 97Z
R18 285/40 R18 101Z 285/40 R18 101Z
R19 225/35 R19 88Z 225/35 R19 88Z
R19 235/35 R19 91Z 235/35 R19 91Z
R19 245/35 R19 93Z 245/35 R19 93Z
R19 265/30 R19 93Z 265/30 R19 93Z
R19 275/30 R19 96Z 275/30 R19 96Z
R19 275/35 R19 100Z 275/35 R19 100Z
R20 225/35 R20 90Z 225/35 R20 90Z
R20 235/35 R20 92Z 235/35 R20 92Z
R20 245/30 R20 90Z 245/30 R20 90Z
R20 245/35 R20 95Z 245/35 R20 95Z
R20 255/35 R20 97Z 255/35 R20 97Z
R20 255/45 R20 101Z 255/45 R20 101Z
R20 275/35 R20 102Z 275/35 R20 102Z
R20 285/30 R20 99Z 285/30 R20 99Z
R22 255/30 R22 95Z 255/30 R22 95Z
R22 265/40 R22 106Z 265/40 R22 106Z
R22 285/35 R22 106Z 285/35 R22 106Z
R22 295/25 R22 97Z 295/25 R22 97Z

Note! Have you driven on the Nitto NT555 EXT tire?.

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