Nankang JD427 AR-1 Competition Track Tire 205/40ZR17 84W XL

The Nankang AR-1 is a DOT-approved semi-slick competition tire engineered for track enthusiasts and racers seeking faster lap times and podium-level performance. Designed with a track-focused philosophy, the AR-1 features a refined single-compound construction and 5.5mm tread depth to minimize tread squirm and maximize grip during aggressive driving.

Key Features:

• 100 UTQG Treadwear Rating: Purpose-built competition compound delivers exceptional grip and consistent performance on track
• Kevlar-Reinforced Construction: 17-inch and larger sizes feature kevlar lining for enhanced stability and heat resistance on high-intensity circuits like Nürburgring and Spa
• 5.5mm Tread Depth: Optimized shallow tread reduces flex and improves contact patch consistency for faster lap times
• Single Compound Design: Uniform compound throughout tire life ensures predictable performance and grip characteristics
• Advanced Tread Pattern: Special inner angled design improves water drainage for wet track capability, while wide center ribs enhance steering precision
• Large Shoulder Blocks: Increased tire stiffness and traction during hard cornering and curved road driving
• Control Tire Status: Used by multiple racing championships including BMW 1 Series SuperCup and Civic Challenge

Size Specifications: 205/40ZR17 with 84W load and speed rating (XL load range). This tire is recommended for competition events and track days, though it is DOT-approved for street use. For optimal performance and tire longevity, an initial heat cycle or break-in procedure is recommended before aggressive track use.