285/35R20 Nankang AR-1 104Y XL Road Legal Semi-Slick Track Day Motorsport Tyre | 285/35 ZR20 Competition Racing Tire | E-Marked Fast Road & Circuit | 20 Inch | AR1 | Sold Individually

285/35R20 AR-1 - road-usable semi slick for serious circuit work

Chasing PBs and consistency lap after lap? This 285/35R20 AR-1 delivers the dry grip, steering precision and stability that track-day drivers and club racers demand, while remaining E-marked and usable on the road to and from the venue. With an XL 104Y rating for extra load capacity and high-speed confidence, it is a proven choice for aggressive setups and heavyweight performance builds.

We run AR-1 rubber on our own cars and customer builds and the feedback is outstanding - fast warm-up, powerful traction, predictable breakaway and superb durability for repeated sessions. This tyre is sold individually - price per tyre.

Why enthusiasts choose AR-1

• Size and rating: 285/35R20 - 104Y - XL extra load
• Single compound with approximately 5.5 mm tread depth for consistent behaviour and rapid lap times
• Primarily circuit-focused with limited road use - ideal for track days, time attack, sprints and hillclimbs
• Used as a control tyre in series such as M3 Cup, 330 Challenge and Classic VW Cup, with podiums in CSCC New Millennium and 750MC Club Enduro
• 2019 production in 17 inch and above features a Kevlar lining for improved stability on high-intensity circuits such as Nürburgring and Spa
• MSA List 1B approved with EU tyre labelling

Perfect for drivers who want

• Road-legal semi slick performance with race-inspired feel
• Strong shoulder support for confident turn-in and loaded-corner grip
• Repeatable performance across long stints and multiple heat cycles

Fitting and support

For professional fitting, geometry and setup advice, book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Mounting and setup guidance

• Balancing tip: align the yellow dot (light spot) with the valve stem on steel or aluminium wheels.
• Typical operating window: 71-104°C.
• Suggested static camber: -1.0 to -3.0 degrees depending on vehicle and usage.
• Recommended hot pressures by vehicle weight:
  • Under 800 kg: 23-27.5 psi
  • 800-1000 kg: 24-32 psi
  • 1000-1400 kg: 27.5-37 psi
  • Over 1400 kg: 34-42 psi
• EU grip, efficiency and noise data available on request.

Search-friendly terms

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