Nitto NT555RII – The next generation of drag radial for your Ford Mustang

The Nitto NT555RII is a D.O.T.-compliant competition drag radial designed with additional flexibility for the weekend drag racer. The high-grip compound and semi-racing construction provide increased traction at the starting line, while the large circumferential grooves aid wet handling on the street.

• Improved sidewall construction for improved launch and 60′ times
• Large twin center ribs for a continuous contact patch for maximum dry traction
• Improved race compound for increased traction at the starting line
• Pairs perfectly with NT555 G2
• UTQG Treadwear Rating: 100
• 28 sizes for 15-inch through 22-inch wheels

The NT555RII pairs perfectly with the Nitto NT555 G2 tires

I personally have the NT555 G2 tires on my 2015 Mustang GT. My Mustang is my daily driver and makes around 730 crank horsepower. These tires handle everything I throw at them on a daily basis. I have had other tire brands in the past and the NT555 G2 is by far my favorite tire. They handle the power my Mustang makes surprisingly well for a summer tire. Driving in the rain hasn’t been an issue even going highway speeds during hard rains.

The point I’m trying to make is that the tread pattern on the G2’s is proven successful. Nitto utilized a similar tread pattern on the new 555RII. I love this idea because I can have a somewhat similar set of tires on the front and back instead of two different styles.

Nitto Drag Radial Tire Comparison

For those of you who aren’t familiar with how tires are graded here is a quick run down for you.

The U.S. Department of Transportation (DOT), Tire Quality Grade Standards (UTQG) were created to provide consumers with useful information when purchasing tires from manufacturers. Three of the major factors are treadwear, traction and temperature capabilities. The grading is conducted by the manufacturers or a third party company they may have hired.

Treadwear Grades: The treadwear of a tire are based on actual road use. The standard for treadwear testing consists of a vehicle driving on a 400 mile loop for a total of 7,200 miles. The higher the treadwear rating, the longer the tire will theoretically last or withstand some burnouts 🙂 .

Traction Grades: Traction grades are based on a tire’s straight line wet coefficient of traction as the tires skid across a specified test course. The UTQG traction rating doesn’t test dry braking, dry cornering, wet cornering or high speed hydroplaning resistance. Grades ranked from highest to lowest rating:

• AA – Above 0.54 G-Force on asphalt
• A – Above 0.47 G-Force on asphalt
• B – Above 0.38 G-Force on asphalt
• C – Less than 0.38 G-Force on asphalt

Temperature Grades: The UTQG Temperature Grades indicates the extent to which heat is generated and/or dissipated by a tire. If a tire is unable to dissipate the heat effectively or if the tire is unable to resist the destructive effects of heat buildup, its ability to run at high speeds is reduced. The grade is measured by a tires ability to operate at high speeds without failing.

• A: Speeds over 115MPH
• B: Speeds between 110 to 115MPH
• C: Speeds between 85 to 100MPH

Nitto NT05R

• UTQG Treadwear Rating: 00
• Traction: B
• Temperature: B
• Special drag racing tire compound for maximum grip on the track
• D.O.T. compliant drag radial
• Recommended for dry competition use

Nitto NT555R

• UTQG Treadwear Rating: 00
• Traction: A
• Temperature: A
• High grip compound with additional flexibility for the weekend racer
• D.O.T. compliant competition drag radial
• Drag radial designed for the street or the strip

Nitto NT555RII

• UTQG Treadwear Rating: 100
• Traction: A
• Temperature: A
• Race tire compound with semi-racing construction for increased traction
• Improved sidewall construction for improved 60′ times *compared to NT05R
• Matched tread pattern to pair perfectly with NT555 G2 summer tires
• D.O.T. compliant drag radial