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* Rim not included

* Tread pattern & sidewall design may vary from pictures

MRF

0/5

0

Set Of 4 MRF Steel Muscle S1M4 8.25R20 H (16 Ply) (TTF)

Commercial

Highway

$1,589.99

/ per item

low monthly payments available with financing

Quantity:

Deals & Rebates

Finance Options

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applePay logo
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paypal logo
americanExpress logo
venmo logo
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Delivery Options

Ship to Installer

1K+ locations across U.S.

Ship to Address

Up to 4 days delivery

Mobile Install

Same-week appointments
* Delivery information is estimated. For more precise info - Enter your ZIP code

* Rim not included, tread pattern & sidewall design may vary.

MRF

0/5

0

Set Of 4 MRF Steel Muscle S1M4 8.25R20 H (16 Ply) (TTF)

Commercial

Highway

$1,589.99

/ per item

low monthly payments available with financing

Quantity:

Deals & Rebates

Finance Options

visa logo
mastercard logo
applePay logo
googlePay logo
paypal logo
americanExpress logo
venmo logo
discoverCard logo

Delivery Options

Ship to Installer

1K+ locations across U.S.

Ship to Address

Up to 4 days delivery

Mobile Install

Same-week appointments
* Delivery information is estimated. For more precise info - Enter your ZIP code

Free Shipping


Fast Delivery


90-Day Returns


Best price guarantee

Free Shipping


90-Day Returns


Best price guarantee


Fast Delivery

COMPATIBILITY

TIRE DETAILS

REVIEW/QUESTIONS

SHIPPING & RETURNS

COMPATIBILITY

TIRE DETAILS

REVIEW/QUESTIONS

SHIPPING & RETURNS

Set Of 4 MRF Steel Muscle S1M4 8.25R20 H (16 Ply) (TTF)

All Season

Commercial

Highway

The MRF Steel Muscle S1M4 is a highway terrain, all season tire made for commercial vehicles. It is designed to be mounted on all axle positions. The ribbed tread design and the durable rubber compound boost the model's steering responsiveness and driving stability. The reinforced internal structure and the special silica compound keep the ideal tire shape under load and driving pressure. These elements enable the tire to carry and withstand heavy loads. The MRF Steel Muscle S1M4 offers a longer-lasting tread life by preventing irregular and premature wear formations.

Enhanced controllability


Upgraded load durability


Longer-lasting tread life


All season performance

FEATURES

AVAILABLE SIZES

The closer and better road contact upgrades steering responsiveness and driving stability. In other words, the tire is quicker and more precise in its response to the driver's commands, while the structure is secured against driving pressure. Furthermore, the shoulder tread blocks provide additional biting edges to grip the road. This allows the tire to enhance its cornering and maneuvering, ensuring safer handling, as the tire guarantees a secure performance.

Year-round traction and hydroplaning resistance are offered with this model. Durable rubber materials keep the tire pliable in changing temperatures, by using weather-resistant rubber. On the other hand, the ideal tread pattern generates biting edges that firmly grip the road surface with extra biting edges. Hydroplaning is avoided thanks to the groove pattern. These grooves prevent water and slush from cutting off the tire's road contact in wet conditions.

The stabilized footprint and the strong compound enable the tire to increase the tread life. The tread ensures even pressure circulation across the tread area, avoiding irregular wear formations. Strong compound elements decrease the treadwear rate as well, by using wear-resistant compound elements. The slow and even wear boosts the service life.

The reinforced internal structure and the special silica compound enhance the tire's load-handling power, by evenly distributing load and driving pressure across the tread area. As the tire does not deform under load and driving pressure, it allows the tire to carry and withstand heavy loads with ease.

Tire Specifications

Check out specifications of the tire.

Tire size8.25R20Section width8.25
Aspect ratioN/ARim diameter20 inches
Overall diameter36.8 inchesTread DepthN/A
Approved rim widthNot specifiedSidewall styleBSW: Black Side Wall
Load indexN/ALoad rangeH (16 Ply)
Speed ratingN/AUTQGN/A
BrandMRFModelSteel Muscle S1M4
SKUN1658320-99-4MPN11377380
SeasonAll SeasonTire TypeHighway
Vehicle typeCommercialRun flatNo
Country of OriginN/ACommercial typeAll Position
Treadlife warrantyNot specified
Tire size8.25R20
Section width8.25
Aspect ratioN/A
Rim diameter20 inches
Overall diameter36.8 inches
Tread DepthN/A
Approved rim widthNot specified
Sidewall styleBSW: Black Side Wall
Load indexN/A
Load rangeH (16 Ply)
Speed ratingN/A
UTQGN/A
BrandMRF
ModelSteel Muscle S1M4
SKUN1658320-99-4
MPN11377380
SeasonAll Season
Tire TypeHighway
Vehicle typeCommercial
Run flatNo
Country of OriginN/A
Commercial typeAll Position
Treadlife warrantyNot specified

Shipping & Returns

View shipping options and return policies.

Shipping
  • • Fast & Free Shipping in the 48 contiguous states
  • • Same-day dispatch if ordered by 1 PM EST on business days
  • • Delivery in 1-6 business days, depending on your location
  • • Shipped from PA, TX, FL & other U.S. warehouses.
Returns
  • • 90-Day Returns on unmounted, unused tires
  • • Return shipping is the customer’s responsibility

Tires may ship separately and arrive on different days, even when ordered together.

Shipping Info

0/5

0

Set Of 4 MRF Steel Muscle S1M4 8.25R20 H (16 Ply) (TTF)

8.25R20 • All Season

Vehicle Type

Commercial

Tire Type

Highway

Speed Rating

N/A


$1,589.99

/ per tire

Set Of 4 MRF Steel Muscle S1M4 8.25R20 H (16 Ply) (TTF)

All Season

Commercial

Highway

The MRF Steel Muscle S1M4 is a highway terrain, all season tire made for commercial vehicles. It is designed to be mounted on all axle positions. The ribbed tread design and the durable rubber compound boost the model's steering responsiveness and driving stability. The reinforced internal structure and the special silica compound keep the ideal tire shape under load and driving pressure. These elements enable the tire to carry and withstand heavy loads. The MRF Steel Muscle S1M4 offers a longer-lasting tread life by preventing irregular and premature wear formations.

Enhanced controllability


Upgraded load durability


Longer-lasting tread life


All season performance

FEATURES

AVAILABLE SIZES

The closer and better road contact upgrades steering responsiveness and driving stability. In other words, the tire is quicker and more precise in its response to the driver's commands, while the structure is secured against driving pressure. Furthermore, the shoulder tread blocks provide additional biting edges to grip the road. This allows the tire to enhance its cornering and maneuvering, ensuring safer handling, as the tire guarantees a secure performance.

Year-round traction and hydroplaning resistance are offered with this model. Durable rubber materials keep the tire pliable in changing temperatures, by using weather-resistant rubber. On the other hand, the ideal tread pattern generates biting edges that firmly grip the road surface with extra biting edges. Hydroplaning is avoided thanks to the groove pattern. These grooves prevent water and slush from cutting off the tire's road contact in wet conditions.

The stabilized footprint and the strong compound enable the tire to increase the tread life. The tread ensures even pressure circulation across the tread area, avoiding irregular wear formations. Strong compound elements decrease the treadwear rate as well, by using wear-resistant compound elements. The slow and even wear boosts the service life.

The reinforced internal structure and the special silica compound enhance the tire's load-handling power, by evenly distributing load and driving pressure across the tread area. As the tire does not deform under load and driving pressure, it allows the tire to carry and withstand heavy loads with ease.

Tire Specifications

Check out specifications of the tire.

Tire size8.25R20Section width8.25
Aspect ratioN/ARim diameter20 inches
Overall diameter36.8 inchesTread DepthN/A
Approved rim widthNot specifiedSidewall styleBSW: Black Side Wall
Load indexN/ALoad rangeH (16 Ply)
Speed ratingN/AUTQGN/A
BrandMRFModelSteel Muscle S1M4
SKUN1658320-99-4MPN11377380
SeasonAll SeasonTire TypeHighway
Vehicle typeCommercialRun flatNo
Country of OriginN/ACommercial typeAll Position
Treadlife warrantyNot specified
Tire size8.25R20
Section width8.25
Aspect ratioN/A
Rim diameter20 inches
Overall diameter36.8 inches
Tread DepthN/A
Approved rim widthNot specified
Sidewall styleBSW: Black Side Wall
Load indexN/A
Load rangeH (16 Ply)
Speed ratingN/A
UTQGN/A
BrandMRF
ModelSteel Muscle S1M4
SKUN1658320-99-4
MPN11377380
SeasonAll Season
Tire TypeHighway
Vehicle typeCommercial
Run flatNo
Country of OriginN/A
Commercial typeAll Position
Treadlife warrantyNot specified

Shipping & Returns

View shipping options and return policies.

Shipping
  • • Fast & Free Shipping in the 48 contiguous states
  • • Same-day dispatch if ordered by 1 PM EST on business days
  • • Delivery in 1-6 business days, depending on your location
  • • Shipped from PA, TX, FL & other U.S. warehouses.
Returns
  • • 90-Day Returns on unmounted, unused tires
  • • Return shipping is the customer’s responsibility

Tires may ship separately and arrive on different days, even when ordered together.

Shipping Info