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255-45r21 tires

HD937

Summer tires are designed for use in warmer weather or in areas where the temperatures does not drop below 40 degrees. These tires are ideal for ue in warm, dry, and wet conditions that are common in the summertime.

Designed for use on light trucks and SUVs such as the Ram 1500, Ford F-150, and Chevrolet Silverado. Light Truck tires are strong enough to support a truck's heavier weight and whatever else is being hauled or towed.

This product is not covered by a manufacturer’s treadlife warranty.

Mileage Warranty

The maximum carrying capacity for a tire determined by the manufacturer.

Load Index

Maximum speed capability to safely carry a load for an extended period of time.

Max Speed

The maximum load carrying strength at the specified inflation pressure, also known as ply rating.

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Sidewall

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

Tread Depth

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Part Number

Tread design (or tread pattern) can affect handling, traction & noise for different driving styles & road conditions.

Tread Design

Tire Weight

The diameter of a tire that is inflated without any load applied.

Overall Diameter

6 tires available in 255-45r21

In Size 255-45r21

Consistently rated as excellent by experts with the highest SimpleScore among the top 5 tires.

Top SimpleScore&trade;:

Chosen by our tire experts.

P Zero (PZ4-Sport) Elect

Specifically engineered for use on electric vehicles. This tire is able to withstand the weight, range, and noise needs of an EV.

Electric Vehicle Optimized

Standards that measure treadwear, temperature resistance and traction, example: "640 A A".  The 640 is the treadwear test and it lasted 6.4 times longer than the comparison tire tested against.  The first "A" is the traction rating using straight-line wet traction on test surfaces (see information tables tab) and the second "A" is the temperature rating by testing operation at high speeds without heat-related failure (see information tables tab).

UTQG

Wet Traction is a piece of the UTQG for example if  UTQG is: 500 AA A, the wet traction piece is the second piece, the "AA".

Wet Traction

The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard.

Inflation Pressure

The measurement of width from a tires inner sidewall to the outer sidewall.

Section Width

The range of widths the rim of the vehicle can be for this tire to be safely mounted on.

Rim Range

Based on verified customer reviews, this tire has been highly rated.

Top rated:

Best customer reviewed tire.

Potenza Sport

Passenger tires are some of the most common tires you'll find on the roads today, and frequently used on coupes, sedans, hatchbacks, minivans, and other passenger vehicles. Passenger tires are available in a wide variety of types, such as all-season, winter, and ultra-high-performance.

ENDS IN...

255/45R21 haida Tires

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Haida HD937
255/45ZR21 105W XL | In stock

Category
Summer
Vehicle
Light Truck
Mileage Warranty
N/A

Load Index
2039 lbs (105)
Max Speed
168 MPH (W)
Load Range
Extra (XL)
Sidewall
Blackwall
Tread Depth
10/32nds
Part Number
30015409
Tread Design
Asymmetrical
Tire Weight
35 lbs
Overall Diameter
25"

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ENDS IN...

255/45R21 haida Tires

Haida HD937255/45ZR21 105W XL | In stock

CategorySummerVehicleLight TruckMileage WarrantyN/A

Load Index2039 lbs (105) Max Speed168 MPH (W) Load RangeExtra (XL) SidewallBlackwall Tread Depth10/32nds Part Number30015409 Tread DesignAsymmetrical Tire Weight35 lbs Overall Diameter25"

Join the SimpleCrew and get exclusive perks.

Did you find what you were looking for?

Haida HD937
255/45ZR21 105W XL | In stock

Category
Summer
Vehicle
Light Truck
Mileage Warranty
N/A

Load Index
2039 lbs (105)
Max Speed
168 MPH (W)
Load Range
Extra (XL)
Sidewall
Blackwall
Tread Depth
10/32nds
Part Number
30015409
Tread Design
Asymmetrical
Tire Weight
35 lbs
Overall Diameter
25"

Did you find what
you were looking for?