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275-45r21 tires

Discoverer CrossRange

All-terrain tires offer drivers traction on- and off-road, and are typically used by light truck and SUV drivers who want a tire that's able to climb rocks and perform on the highway.

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

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

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

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

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

Part Number

Tire Weight

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

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

Overall Diameter

Discoverer CrossRange NRT

Like  their name suggest, all season tires are designed to give drivers performance year-round. All-season tires often provide strong performance in dry and wet conditions, and suitable traction and grip in wintery weather.

79 tires available in 275-45r21

In Size 275-45r21

**Most drivers choose from our top picks**<br />They include the best matches 
                     of this tire size based on popularity, user ratings, and price.

We'll start with our 5 top picks

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

Top rated:

Best customer reviewed tire.

Scorpion Verde All Season

SUV/Crossover tires are designed for use on SUVs and CUVs and provide many of the same performance characteristics as passenger tires but are built to handle the heavier weight that's common from these larger vehicles.

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

Tread Design

Low rolling resistance tires are designed to reduce the energy loss as a tire rolls, decreasing the required rolling effort, improving vehicle fuel efficiency.

Low Rolling Resistance

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

Top SimpleScore&trade;:

Chosen by our tire experts.

Save on this  tire today.

Best deal:

Save even more.

SportContact 6

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.

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.

Most popular among drivers in PA

Best seller:

Go with the best seller

LX-Thirty

This product is covered by a 55,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

With similar, but improved specs to the factory tire

Best match:

Best match to original tire

Iota ST68

This product is covered by a 35,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

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275/45R21 cooper Tires

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Vehicle

Category

Price Range

Cooper Discoverer CrossRange
107H | In stock

Category
All Terrain
Vehicle
Light Truck
Mileage Warranty
N/A

Load Index
2150 lbs (107)
Max Speed
130 MPH (H)
Load Range
Standard (SL)
Sidewall
Blackwall
UTQG
400AA
Wet Traction
A
Tread Depth
11/32nds
Inflation Pressure
51 PSI
Part Number
160002015
Tire Weight
33.52 lbs
Section Width
11.2"
Rim Range
8.50-10.50"
Overall Diameter
30.83"

Join the SimpleCrew and get exclusive perks.

Cooper Discoverer CrossRange NRT
107H | In stock

Category
All Season
Vehicle
Light Truck
Mileage Warranty
N/A

Load Index
2150 lbs (107)
Max Speed
130 MPH (H)
Load Range
Standard (SL)
Sidewall
Blackwall
UTQG
400AA
Wet Traction
A
Tread Depth
11/32nds
Inflation Pressure
51 PSI
Part Number
160002019
Tire Weight
33.52 lbs
Section Width
11.2"
Rim Range
8.50-10.50"
Overall Diameter
30.83"

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275/45R21 cooper Tires

Cooper Discoverer CrossRange 107H | In stock

CategoryAll TerrainVehicleLight TruckMileage WarrantyN/A

Load Index2150 lbs (107)Max Speed130 MPH (H)Load RangeStandard (SL)SidewallBlackwallUTQG400AAWet TractionATread Depth11/32ndsInflation Pressure51 PSIPart Number160002015Tire Weight33.52 lbsSection Width11.2"Rim Range8.50-10.50"Overall Diameter30.83"

Join the SimpleCrew and get exclusive perks.

Cooper Discoverer CrossRange NRT 107H | In stock

CategoryAll SeasonVehicleLight TruckMileage WarrantyN/A

Load Index2150 lbs (107)Max Speed130 MPH (H)Load RangeStandard (SL)SidewallBlackwallUTQG400AAWet TractionATread Depth11/32ndsInflation Pressure51 PSIPart Number160002019Tire Weight33.52 lbsSection Width11.2"Rim Range8.50-10.50"Overall Diameter30.83"