G-Force Phenom T/A

About the BFGoodrich G-Force Phenom T/A

Ultra-High Performance Passenger Car tire.

Features

* Performance Racing Core construction* UltiGrip Technology, which includes a stiffer sidewall and offset shoulder grooves* Lateral Groove Damper

Benefits

* Provides exceptional control and traction* For maximum grip in dry zones and efficient water evacuation in wet zones* An innovation that significantly reduces road noise, thus allowing for a more pleasant and quiet driving experience

Understanding the 255/40ZR21 XL size

In the size code 255/40R21, 255 is the section width in millimetres (about 10"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 102 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 29".

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 Y certifies the tire to 186 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 380 A A. The treadwear grade of 380 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 $240.74 per tire, a full set of four costs $962.96. That is about 26% below the average price of the 56 tires we stock in this size.