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Extreme performance for official road racing

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COMPETITION CAR         RACING         SEMI-SLICK         STEERING         EXTREME PERFORMANCE

VENTUS R-S4                                                                       HANKOOK TIRES
Concept
Concept of design

Geometric Chamfer Design
The edges of all treads are geometrically chamfered to enhance tire durability and prevent tread damage from constant pressure. The weight generated by high-speed driving and emergency braking is maximized by the chamfered design.

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“Strong movement”
Technology
Excellent directional pattern technology

Inherited Ventus R-S3 application of directional pattern technology.
Optimized contact ratio per block to maintain optimum block stiffness on straight and circuit tracks

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High hardness tread blocks
Widened center block improves steering response The widened center block maintains stable grip on the road and enables responsive steering response
Improve cornering grip.
Two main grooves
anti-aquaplaning technology.
Grooved Multi-Angle Technology
Strengthen the tire block hardness to prevent vibration.
Technology
Compound Technology

Addition of Silica to enhance Wetland Performance

Improve wet grip

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Highly dispersed silica

Hydrophilic effect

Enhanced wet handling performance with hydrophilic silica.

Application of functional resins to increase compound stiffness and heat release

The resin structure increases the stiffness of the tread compound, which in turn improves dry handling.

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Resin structure build

Maximizing Wetland Performance Through Functional Polymers
Optimized silica polymer structure

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Compounds that balance wear and low rolling resistance

The application of functional polymers to improve the structure between the hydrophobic polymer and the hydrophilic silica can maximize the wet handling performance.

Functional resin

Loss factor

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Low

Temperature (°C)

High

Improves tire grip by increasing heat release from the tread compound.

Technology
Multiple tread radius

4TR System (Multiple tread radius technology)

The Ventus R-S4 features a Quattro tread radius profile that maintains maximum grip at high speeds or tight corners not only on general roads, but also on race tracks.

Apply racing technology to ensure optimum grip
Racing tires are contoured to maintain optimum shoulder grip during acceleration and cornering. At any drive angle and condition, you'll be amazed after cornering.

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Technology
Uniform Trajectory Technology
Virtual simulation under various conditions of use
Maintains tire track shape and tread pressure even in harsh conditions, improving grip and control performance unlike existing products.
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Traction while free rolling

Traction when cornering

Technology
Sustained firmness
Uniform tread temperature during operation
The optimized design improves the overall structure, and the tread of the tire has the best heat dissipation shape for any run. Even on repeated laps, the tread doesn't slip due to heat.

Tread temperature [degC]

Tread temperature [degC]

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Test Result
Test Report (Single Lap time)
Willow springs raceway (LA)
Location : 3500 75th Street west rosa mond, CA 93560
Track Length : 1.6 miles (About 2.6 KM)

Lap time
A 2.07-second improvement is achieved through advanced contouring, compounding and structural design in high-offset cornering conditions. Compared to the previous generation, the lap time is 0.82 seconds shorter.
Lap times are also shorter compared to the competition.

BMW M4

Engine Displacement : 2,979cc (Twin power turbo)

Net Weight : 2100Kg

Horsepower : 431HP / 56.1kg‧m

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Cornering Force [Newtons]

Competitor

Offset angle [degrees]

1.25 seconds less

2.07 seconds less

Test Result
Test Report (Handling)

Handling

With an optimized tread profile and structure, dry performance is improved over the previous-generation Ventus R-S3.

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Tire Structure
Tire structure

Shoulder nylon reinforcement belt

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When cornering, the nylon reinforced belt can withstand higher loads and minimize shoulder deformation, giving you better handling and cornering performance. In addition, in the pursuit of faster lap times, we have reduced the problem of low air pressure and heavy shoulder loads. Under high camber angle vehicle operation, this product can reduce some side wear and abnormal wear problems.

Racing tire compound

New soot and silica compounds.

Double layer seamless high-density nylon belt

Achieve a stable tread for extended life and optimized handling.

Double layer wide steel belt

Tread handling.

Double ply structure

Tire energy accumulation

Double ply structure

Minimize side and side reinforcement strap deformation.

Bead fillers and side reinforcement belts

Improve handling performance

High strength bead wire

Improves bead durability and balance

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