The FS592 comes in four sizes, is EPA SmartWay certified, and features Bridgestone’s next-generation ENLITEN technology. With an extra 32nd of tread depth and a wider footprint, it delivers more removal miles than the previous model.

According to Bridgestone, “The FS592 will officially replace the FS591 and builds upon its predecessor’s reputation for durability with 17% longer life. On average, it will deliver 18,000 more miles than its predecessor; a casing engineered with the company’s next-generation ENLITEN technology to deliver added durability, greater retreadability, and improved rolling resistance; and defense grooves and an optimized shoulder rib to help control wear balance and combat against tearing.”

The tire also features a five-rib tread design to ensure even wear across different road conditions, helping drivers maintain safe handling while extending the life of their tires.

For truckers, this means fewer stops for tire maintenance, more predictable wear, and longer-lasting performance on both highways and regional routes.

Source: Commercial Carrier Journal

The post Bridgestone Launches Firestone FS592 Steer Tire for Long-Haul and Regional Trucks appeared first on Truck Drivers USA.

What Is the Steer Axle Weight Limit?

The Federal Highway Administration (FHWA) sets axle weight limits under the Federal Bridge Formula, but tire load ratings also govern steer axles. While the federal legal limit for a steer axle is typically 12,000 pounds, it can go higher depending on your tire size and rating. For instance:

• Two 14-ply tires rated at 6,000 lbs = 12,000 lbs max
• Two 16-ply tires rated at 6,610 lbs = 13,220 lbs max

So, while the number 12,000 gets repeated a lot, your real limit depends on your tires.

Why Steer Axle Weight Limits Matter

The steer axle doesn’t just guide your truck—it supports the engine, part of the cab, and a portion of the trailer load. Go over that limit, and you risk:

• Premature tire wear or blowouts
• Loss of steering control
• Suspension or component damage
• DOT citations and fines

A balanced steer axle also means better handling in rough weather, tight turns, or emergency stops. Think of it as insurance for both safety and smoother hauls.

Semi Truck Axle Weights: How It All Adds Up

A standard 18-wheeler setup usually breaks down like this:

• Steer axle: 12,000–13,200 lbs (depending on tire rating)
• Drive axles (tandem): 34,000 lbs
• Trailer axles (tandem): 34,000 lbs

This gives you a total federal gross vehicle weight limit of 80,000 pounds. But even if your overall weight is legal, you can still get flagged if your axles are off. Each axle must meet its own limit—they’re not averaged out.

Real-World Impact: What Drivers Actually Deal With

Steer axle overages often show up in situations like:

• Topping off your fuel tanks: The extra weight up front can push you over.
• Front-heavy loads: Poor distribution can shift weight to the steer axle.
• Newer tractors: Emissions systems and other upgrades add curb weight.

Experienced drivers regularly slide the fifth wheel or adjust trailer tandems to get axle weights where needed. Sometimes, it’s a simple fix—other times, it requires reworking your load completely.

Truck Axle Laws Aren’t the Same Everywhere

Your steer axle might be fine in one state and over the limit in another. A few examples:

• California: Strict 12,000 lb steer axle cap
• Michigan: Allows heavier axles if properly permitted and equipped
• Texas: Permits up to 20,000 lbs per single axle under specific rules

If you’re running interstate, always double-check state-specific axle weight laws.

Tips to Keep Your Steer Axle Legal

• Weigh after fueling and loading, not just before you roll.
• Know your tire ratings—they set your steer axle max.
• Use your fifth wheel and trailer axles to shift weight.
• Keep documentation handy, especially if your weight is over 12,000 but within tire specs.

Getting steer axle weights right isn’t just a legal box to check—it’s a key part of running safely and efficiently. Whether you’re new behind the wheel or have a million miles under your belt, understanding your axle weights—especially your steer axle—can help you avoid fines, protect your rig, and keep your freight on schedule.

The post How Steer Axle Weight Limits Impact Real-World Hauls appeared first on Truck Drivers USA.

“They’re already buying tires, so by simply changing a brand, they can improve fuel economy and save a tremendous amount of money.”

The Evolution of Low-rolling-resistance (LRR) Tires

Since their debut about two decades ago, low-rolling-resistance tires have significantly advanced in technology. These innovations have resulted in notable benefits, including improved fuel efficiency, reduced greenhouse gas emissions, and greater adoption by fleet operators.

“They’re just making the tires better and better all around,” Bear added, noting that these advancements have fueled their popularity, particularly in specific applications like long-haul trucking.

Practical Applications in the Industry

Although LRR tires dominate certain sectors like over-the-road trucking, their utility is application-dependent. For example, fleets requiring robust traction for off-road or snowy conditions might steer away from LRR tires due to traction concerns.

For long-haul operations, however, these tires are becoming increasingly common. Jim Garrett, product category manager at Michelin North America, explained their effectiveness in highway scenarios, adding, “At lower speed, varying load, starting and stopping or other applications, it becomes more difficult to measure the fuel savings,” he said. While regional and urban applications will still generate savings, it will be less obvious, he added.

Advanced Design and Longevity

Modern LRR tires are far removed from their early iterations, which were criticized for thinner treads, limited life spans, and reduced traction. Mike Roeth, executive director of the North American Council for Freight Efficiency (NACFE), acknowledged the evolution by stating, “Tire designs have become incredibly sophisticated. Goodyear, Michelin, and other leaders have improved traction, wear, and fuel economy through lower rolling resistance.”

Some of today’s LRR tires can last up to 250,000 miles, a significant leap forward compared to earlier models. However, fleets still balancing multiple priorities, such as traction for snowy or wet conditions, may hesitate to adopt LRR tires entirely.

Return on Investment for Fleets

The financial benefit of LRR tires is undeniable. NACFE research highlights that the fuel cost tied to tire rolling resistance is about five times higher than the tire’s initial price. This means switching to LRR tires can offer substantial long-term savings.

Matt Godfrey, president of ABF Freight, shared how his organization has embraced these tires for their 4,200-tractor and 23,000-trailer fleet, explaining, “We make a lot of investments in our fleet each year to replace older units, reduce our carbon footprint, and lower the fleet’s age—including the use of LRR tires.”

Sustainability and Environmental Impact

The environmental benefits of LRR tires align with broader sustainability trends. Many fleets now choose SmartWay-verified tires, a program promoting fuel efficiency and reduced freight transport emissions.

For example, ABF Freight has approximately 60-70% of its fleet operating on LRR tires while integrating SmartWay-certified recaps to amplify its environmental efforts.

Challenges and Future Developments

Though LRR tires have made great strides, there’s room for improvement. The trucking industry seeks extended tire lifespans and tread designs better suited for specific conditions. According to Godfrey, enhancements in tire longevity would help decrease the total number of tires necessary in fleets and minimize labor costs associated with replacements.

“You’d want to see something that wears slower, provides a longer life expectancy, and potentially be capped more frequently at a lower cost,” said Matthew Copot, VP of Fleet Management at Saia Inc.

Experts also note the need for adaptations to accommodate battery-electric trucks, which place unique stress on tires due to higher torque. Roeth emphasized, “Current designs suit diesel trucks, but battery-electric trucks require changes to sustain wear under heavier loads.”

Driving Industry Change

The broader influence of LRR technologies is undeniable. Many features originally designed for LRR tires are now commonplace in other tire categories, pushing the entire industry toward more fuel-efficient designs. Garrett from Michelin anticipates that as fleets refine how they track fuel usage, they’ll naturally continue adopting LRR tires.

“Factors such as GHG regulations, fuel prices, and societal pressure will further drive adoption,” Garrett stated.

A Clear Path Forward

Low-rolling-resistance tires are no longer just a smart option; they are a competitive advantage for fleets looking to reduce expenses, enhance sustainability, and maximize operational efficiency. While their implementation depends on specific trucking applications and conditions, continued advancements offer growing benefits for the industry.

For fleets striving to remain at the forefront, LRR tires represent a critical investment in the present and the future.

Source: Transport Topics

Image Source: Mesilla Valley Transportation Solutions

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