Nankang JD451 AR-1 285/35ZR20 104Y XL Competition Motorsports Tire

The Nankang AR-1 (JD451) is a DOT-approved, semi-slick competition tire engineered for track day enthusiasts, autocross competitors, and time attack drivers who demand maximum dry grip without sacrificing street legality. Sized at 285/35ZR20 104(Y) XL, this tire bridges the gap between high-performance street radials and dedicated racing slicks.

Key Features:

• Semi-slick compound (100 UTQG treadwear) — unique blend engineered for rapid warm-up and consistent grip at sustained operating temperatures of 71–104°C
• 5.5mm optimized tread depth — reduces tread squirm and delivers faster, more consistent lap times
• Kevlar-reinforced construction (17-inch and larger) — enhances high-speed stability, heat resistance, and sidewall stiffness under aggressive cornering loads
• Wide center ribs — improve steering precision and on-center feel at speed
• Large shoulder blocks — maximize traction and stiffness through high-load cornering
• Inner angled tread pattern — promotes efficient water evacuation for improved wet-surface handling capability
• Bevel pattern design — increases overall tire stiffness and structural integrity
• DOT-approved / E-Marked — legal for street use while delivering race-focused performance
• Motorsport UK List 1B approved — qualifies for use in numerous sanctioned motorsport series

The AR-1 has proven its capabilities as a control tire in the BMW M3 Cup, 330 Challenge, and Classic VW Cup, and has earned podiums in open tire series including the CSCC New Millennium and 750MC Club Enduro. Its single-compound construction prioritizes grip and lap time consistency over tread longevity — making the JD451 the ideal choice for drivers who are serious about extracting every tenth on track.

Note: Heat cycling (scrubbing in) is strongly recommended before pushing the AR-1 to its limits. Perform 3–4 progressive warm-up laps not exceeding 85% capacity, followed by a minimum 24-hour off-car cooling period for optimal long-term performance and tire life.