Hero image 0 of Atturo ST300 Steel Belted ST225/75R15 225/75R15 121/117M F 12 Ply Trailer Tire, 0 of 5

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Atturo ST300 Steel Belted ST225/75R15 225/75R15 121/117M F 12 Ply Trailer Tire

Name: Atturo ST300 Steel Belted ST225/75R15 225/75R15 121/117M F 12 Ply Trailer Tire
Brand: Atturo
SKU: 9607721975
Price: 79.92 USD
Availability: InStock
Rating: 4.8 (35 reviews)

|35 ratings

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Key item features

Trailer Specific: Designed exclusively for trailer applications like utility, RV, boat, and horse trailers, not for drive or steering axles.
Robust Construction: Features a reinforced internal structure with a 12-ply rating, capable of handling substantial weight and pressure.
Heat Dissipation: Utilizes a special heat-dissipating tread design and durable compound to minimize heat build-up during long highway trips, reducing blowout risk.
Enhanced Stability: Tread pattern with solid center ribs and squared-off shoulders ensures straight tracking, prevents trailer sway, and improves lateral stability.
Weather Resistance: Circumferential grooves channel water for wet grip, and UV/ozone resistant compounds resist weather cracking, prolonging tire life during storage.
Load Capacity: High load rating, including 121/117M F, supports heavy trailer loads with ease, ideal for large RVs and equipment hauling.

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Specs

Tire season
All-Season
Manufacturer
Atturo Tire
Tire width
225 mm
Tire load range
F
Tire load index
121
Vehicle fitment type
Universal

Current price is $79.92

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About this item

Product details

A special trailer (ST) tire purpose-built for trailers, campers, and toy haulers. The ST300 carries heavy loads with enhanced stability and long life, featuring a rugged construction that resists heat build-up for safer towing.

The Atturo ST300 is designed specifically for trailer applications – from utility trailers and RVs to boat and horse trailers. It is not for drive or steering axles of trucks, but instead optimized to perform under the unique conditions trailers experience. This tire boasts a reinforced internal structure and high load ratings (including 10-ply, 12-ply, and even 14-ply sizes), meaning it can handle substantial weight and pressure. When you’re towing, heat is the enemy of tires – the ST300 uses a special heat-dissipating tread design and durable compound to minimize heat build-up, even on long highway trips, thereby reducing the risk of blowouts. The tread pattern itself is designed for stability and even wear: it often has solid center ribs or interconnected blocks that help the tire track straight (preventing trailer sway) and deliver consistent contact for better control. The shoulders are squared-off to enhance lateral stability, which is important when crosswinds hit or during cornering with a trailer. For wet conditions, circumferential grooves help channel water and maintain grip, so your trailer stays obedient behind you in the rain. The ST300 also resists weather cracking – an important factor since trailer tires often sit unused for periods of time; UV and ozone resistant compounds help prolong its life. When parked or stored, the robust construction handles the weight without flat-spotting as much. Safety is paramount: the ST300 gives you the peace of mind that your trailer tires can handle the journey, allowing you to focus on the road ahead. Always inflate to the recommended PSI when towing to get the full benefit of its load capacity and performance. With Atturo ST300 tires, you can tow heavy loads confidently, knowing your trailer is riding on rubber that’s purpose-built for the task.
Atturo ST300 – Special Trailer tire for trailers, campers, and RVs (not for driven wheels)
High load rated – available in Load Range D, E, F, and G (up to 14 or 16 ply rated) to support heavy trailer loads with ease – great for large RVs, 5th wheels, and utility trailers hauling equipment
Enhanced stability – stiff sidewalls and a solid center rib reduce trailer sway and improve tracking, keeping your trailer straight and stable even at highway speeds
Heat resistant design – optimized tread pattern and heat-dissipating compound minimize heat build-up during long tows, reducing the risk of blowouts and extending tire life
Long-lasting tread – robust tread blocks ensure even wear across the tire, while the rubber formula resists weather cracking and UV damage during storage (helps maintain integrity over time)
All-weather reliability – grooves in the tread provide traction in wet conditions, and the tire is M+S rated for use in light mud or snow if needed (for example, towing in shoulder seasons), so you have dependable performance in various conditions

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Specifications

Tire season

All-Season

Manufacturer

Atturo Tire

Tire width

225 mm

Tire load range

Warranty

Warranty information

Standard manufacturer warranty covering any defects in materials or workmanship

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warranty url

https://atturo.com/tire-resources/tire-warranty

Customer ratings & reviews

4.8 out of 5 stars

stars35 ratings24 reviews

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Showing 1-3 of 24 reviews

Aug 1, 2025

Travis

5 out of 5 stars review

Verified Purchase

I upgraded my 32 foot camper to these 12 ply tires from the factory 10 ply. I just completed a 5000 mile trip with them and absolutely nothing but praise. Smoother, quieter ride. Less bounce and more control of the trailer. I had them mounted with a tire conditioner and balancing gel inside as well for dynamic balancing and temperature control. Will definitely buy again.

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Mar 23, 2026

Elaine

Item details

Product line: ST300

Tire size: ST225/75R15

5 out of 5 stars review

Verified Purchase

tires held up well on our trip, I would recommend you get the 14 ply if you can, it is a lot better tire

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Aug 29, 2025

Brian

5 out of 5 stars review

Verified Purchase

Fast delivery. Good tires balanced well. Usually you don't balance trailer tires. To me the extra 20 dollars is worth.

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Atturo ST300 Steel Belted ST225/75R15 225/75R15 121/117M F 12 Ply Trailer Tire

Key item features

Specs

How do you want your item?

Try 30 days of Walmart+ for just $1!

About this item

Product details

Specifications

Tire season

Manufacturer

Tire width

Tire load range

Warranty

Warranty information

Warranty url

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