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Smart Flex AL51

Outstanding mileage performance without compromising fuel efficiency for long & regional haul use

M+S 3PMSF

Application
  • Long Haul
  • Regional Haul
Tractor/Trailer, Truck Recommended
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Outstanding mileage performance without compromising fuel efficiency for long & regional haul use

Optimized Block Size

Wide tread blocks enhance the tire's rigidity and improve the mileage while delivering low rolling resistance.

Hidden Groove

As hidden grooves appear at the end of wear, it keeps wet grip and traction performance.

Tread Wear Equalized Stepper (T.W.E.S.)

Small step-shaped blocks provide even wearing and prevent stone trapping, resulting in a long tire life.

Integrated Premium Technologies: Hidden Groove

Hankook premium technologies deliver high grip and mileage performance from the first to last milimeter of tire life. Our 'no compromise' development approach ensures that also a low rolling resistance is kept at all stages of wear, benefitting both your budget and the environment.

New Tire

Thorougly developed tread pattern design delivering high grip performance and mileage while being fuel efficient.

40% Wear

Interlocking 3D sipes are revealed, supporting tread block stiffness to keep up the high level of grip and a low rolling resistance.

70% Wear

Hidden grooves appear when the tire is 70% worn delivering improved wet grip and traction performance.

3-dimensional sipe

Full Depth 3D sipes maintain excellent mileage and traction throughout the entire life of the tire by reinforcing and interlocking the tread blocks.

Controlled tearing and wearing
→ Reduce irregular wear.
Full depth sipe applied
Improving traction and grip throughout the life of the tire.

Innovative Mixing System

The Innovative Mixing System (IMS) minimizes the disconnection of the polymer chain and oxidation. The carbon black reinforcement also has higher dispersion levels. These effects of IMS help strengthen the bonding force between the carbon black and rubber for a stronger compound and lower heat generation.
The benefits of IMS are higher mileage and fuel efficiency.

1 Step
Larger molecular weight by minimizing the breakdown of the polymer chain.

2 Step
Increased strength and decreased heat generation.

Mixing
Higher mileage and improved fuel efficiency.

Stiffness Control Contour Technology (SCCT)

SCCT is designed for constant profile deformation. If the casing profile cannot be kept constant, the internal force on the casing will be concentrated on a specific point (belt edge or turned up casing edge). In contrast, SCCT controls the dispersion of internal forces for better durability.

SCCT allows Hankook Tire to develop tires by balancing optimum stiffness with the contact shape. The benefits of this technology are improved performance, safety, cornering, braking and durability.

  • Test Results

  • Spec

    • 295/80R22.5
      • Fuel Efficiency B
      • Wet Grip C
      • External Rolling Noise 70
      • Tube Type / Tubeless L
      • Ply Rating 18
      • Measuring Rim 9.00X22.5
      • Load Index 154/149M
      • Section Width(mm) 306
      • Tread Width(mm) 230
      • Tread Depth(mm) 13.5
      • Static Loaded Radius(mm) 484
      • Overall Diameter(mm) 1049
      • M+S Y
      • 3PMSF Y
      • Origin China
    • 315/70R22.5
      • Fuel Efficiency B
      • Wet Grip B
      • External Rolling Noise 72
      • Tube Type / Tubeless L
      • Ply Rating 20
      • Measuring Rim 9.0X22.5
      • Load Index 156/150L
      • Section Width(mm) 312
      • Tread Width(mm) 270
      • Tread Depth(mm) 14.0
      • Static Loaded Radius(mm) 466
      • Overall Diameter(mm) 1010
      • M+S Y
      • 3PMSF Y
      • Origin Korea
    • 315/70R22.5
      • Fuel Efficiency B
      • Wet Grip B
      • External Rolling Noise 72
      • Tube Type / Tubeless L
      • Ply Rating 20
      • Measuring Rim 9.0X22.5
      • Load Index 156/150L
      • Section Width(mm) 312
      • Tread Width(mm) 270
      • Tread Depth(mm) 14.0
      • Static Loaded Radius(mm) 466
      • Overall Diameter(mm) 1010
      • M+S Y
      • 3PMSF Y
      • Origin China
    • 385/65R22.5
      • Fuel Efficiency B
      • Wet Grip B
      • External Rolling Noise 70
      • Tube Type / Tubeless L
      • Ply Rating 20
      • Measuring Rim 11.75X22.5
      • Load Index 160K
      • Section Width(mm) 379
      • Tread Width(mm) 308
      • Tread Depth(mm) 13.0
      • Static Loaded Radius(mm) 498
      • Overall Diameter(mm) 1070
      • M+S Y
      • 3PMSF Y
      • Origin Korea