BFGoodrich G-Force Phenom T/A 255/40ZR18 XL G-Force Phenom T/A
BFGoodrich

G-Force Phenom T/A

255/40ZR18 XL
$168.74/tire $224.99
Set of 4: $674.96
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size255/40ZR18 XL G-Force Phenom T/A
Width255 mm
Aspect ratio40
Rim diameterR18
Load index99
Speed ratingY
Load rangeXL
UTQG380 A A
Tread depth8.5/32"
Weight27.87 lbs
Max pressure50 psi
Severe snow (3PMSF)No
Run-flatNo

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 255/40ZR18 XL size

In the size code 255/40R18, 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. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 26".

The load index 99 means each tire supports up to 1,709 lbs — about 6,836 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 $168.74 per tire, a full set of four costs $674.96. That is about 13% below the average price of the 71 tires we stock in this size.

Frequently asked questions

What does the tire size 255/40R18 mean?

255 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 102 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 26 inches.

What are the load and speed ratings of the BFGoodrich G-Force Phenom T/A 255/40ZR18 XL?

Its load index of 99 allows up to 1,709 lbs per tire. Its speed rating of Y is certified to 186 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 BFGoodrich G-Force Phenom T/A 255/40ZR18 XL tires cost?

A single tire is $168.74 and a set of four is $674.96.

Does the G-Force Phenom T/A come in other sizes?

Yes — we stock 74 additional G-Force Phenom T/A sizes besides 255/40ZR18 XL. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 255/40R18

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