Hankook e3 Max AL21 SmartWay Long-Haul Commercial Steer Tire

The Hankook e3 Max AL21 is a SmartWay Verified and CARB Compliant medium-duty commercial truck radial steer tire engineered for the rigorous demands of long-haul fleet operation. Part of Hankook's commercial Smart Line and built using the proprietary Smartec manufacturing process, the AL21 is purpose-built to excel across five core performance pillars: Safety, Mileage, Anti-Chip & Cut, Retreadability, and Traction. Mileage is improved 23% over its predecessor, while optimized rolling resistance is designed to outperform key competitors and reduce fleet fuel costs over the life of the tire.

Smartec Long-Haul Casing Technology:

• Stabilized Footprint: An enriched belt package and wide belt construction maintain consistent contact across the full footprint, reducing uneven wear and extending tread life
• Minimized Belt Motion: Reduced belt movement limits heat generation, enhancing casing durability and long-term longevity
• Optimized Carcass Structure: Engineered for superior ride quality and responsive handling at the steer axle position
• Superior Retreadability: An optimized bead profile and robust casing construction maximize casing value and support multiple retread cycles, lowering total cost of ownership

Performance Tread Design:

• Symmetric Ribbed Pattern: A flat footprint combined with ribbed tread construction enhances steering responsiveness and overall driving stability
• Optimized Lateral Kerfs & Semi-Groove Kerf Technology: Delivers all-season traction while promoting even wear distribution across the full tread face
• Rounded Kerf Edges: Resists tearing and cracking at kerf edges to extend usable tread life and reduce susceptibility to road damage
• Side Decoupling Grooves: Reduce stress concentration between the sidewall and shoulder areas to combat irregular wear patterns
• Circumferential Grooves: Efficiently channel water and slush away from the contact patch, reducing hydroplaning risk in wet and winter driving conditions

Compliance & Environmental Credentials:

• EPA SmartWay Verified — meets federal standards for fuel efficiency and reduced environmental impact
• CARB Compliant — approved for operation in California and all regulated markets
• Engineered with low rolling resistance to help fleets reduce fuel consumption and lower total cost of ownership per mile

The Hankook e3 Max AL21 is available across a range of commercial steer axle sizes to suit the needs of long-haul truck and bus fleets. Built to deliver consistent durability, fuel efficiency, and all-season confidence, the AL21 is a proven choice for fleets demanding reliability and low operating costs — mile after mile, load after load.