Greentrac Journey X 225/45 ZR17 94W

Description

Greentrac Journey X 225/45 ZR17 94W represents the pinnacle of UHP all-season tire technology, engineered for performance sedans and sport coupes that demand year-round capability without compromising dynamic handling characteristics. This W-speed rated tire combines motorsport-derived engineering with advanced polymer science to deliver exceptional grip across diverse conditions.

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Engineering Specifications

Structural Architecture:

• Carcass: Dual-ply polyester casing with twin steel belts
• Cap Ply: 0° aramid reinforcement for high-speed stability
• Bead: High-tension single-strand steel wire with rim protector

Compound Formulation:

• Base Polymer: Functionalized S-SBR with 35% silica content
• Additives:
  • 15% highly dispersible silica
  • 5% resin-based traction modifiers
  • 3% cryogenic carbon black

Tread Design Metrics:

• Pattern Type: Asymmetric directional
• Groove Area Ratio: 28% (dry) / 35% (wet)
• Sipe Density: 42 sipes per rib (3D multi-angle design)
• Block Stiffness: 65 Shore A (center) / 55 Shore A (shoulder)

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Performance Validation Data

Dynamometer Testing (SAE J2657):

Test Parameter	Result	Industry Benchmark
Dry Lateral G	1.02g	0.98g
Wet Braking (80-0 km/h)	26.3m	28.1m
Rolling Resistance	8.1N/kN	9.3N/kN
High-Speed Endurance	300km @ 240km/h	250km

Environmental Performance:

• Temperature Range: -25°C to +55°C (full operational)
• Snow Traction Index: 1.25 (ASTM F1805)
• Hydroplaning Threshold: 83 km/h (8mm water)

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Acoustic Engineering

• Pitch Sequence: 72-step variable sequence
• Cavity Resonance: 210Hz dampening layer
• Noise Certification: Passes EU 2020/740 Stage 2

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Service Parameters

Mounting Guidelines:

• Rim Width Range: 7.0-8.5″
• Max Mounting Pressure: 4.2 bar (60 psi)
• Recommended Inflation: 2.5 bar (36 psi) normal load

Maintenance Protocol:

• Rotation Interval: 10,000 km (non-directional)
• Alignment Tolerance: ±0.15° camber, ±0.10° toe
• Storage Conditions: <30°C, UV-protected

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Application Matrix

Vehicle Fitment Examples:

• Sport Sedans: BMW 330i, Audi S4, Alfa Romeo Giulia
• Performance Hatches: VW Golf R, Mercedes-AMG A35
• Executive Coupes: Lexus RC, Infiniti Q60

Driving Scenarios:

• Optimal: Spirited street driving (dry/wet)
• Acceptable: Light snow, moderate track use
• Limited: Deep snow (>5cm), competitive motorsport

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Warranty Provisions

• Tread Life: 50,000 km (with rotation)
• Materials: 5 years from DOT date
• Speed Rating: Unrestricted for street use

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Competitive Positioning

Market Segment: Premium UHP All-Season
Key Differentiators:

• 12% higher dry grip than Continental DWS06+
• 18% lower rolling resistance than Michelin PSAS4
• 30° quicker steering response than Pirelli PZero AS+

Recommended For: Enthusiasts requiring uncompromised performance across three seasons with controlled winter capability.