245/40R17 NANKANG AR-1 95W XL Motorsport Tyres Road Legal (sold individually)

245/40R17 AR-1 semi slicks for track performance you can drive to and from the circuit

Chase faster lap times with the 245/40R17 AR-1 in 95W XL specification, sold as a single tyre. Built for drivers who demand serious circuit pace without trailering, this road-legal semi slick delivers relentless grip, sharp steering response and repeatable performance session after session.

Why enthusiasts choose AR-1

• Lap-time focused semi slick for frequent circuit use and fast road running
• Single compound with approx. 5.5 mm tread depth for consistent, predictable handling
• 100TW construction in 17 inch and up with a kevlar lining for extra stability and consistency on long stints
• Proven on high-intensity circuits such as Nürburgring and Spa
• XL reinforced casing, 95 load index and W speed rating for confidence at pace
• MSA List 1B approved and EU labelled for street legality where applicable
• Available across 13 to 20 inch diameters so you can build a square or staggered setup to suit

Proven in competition

Chosen as a control tyre by the M3 Cup, 330 Challenge and Classic VW Cup, and a podium winner in open-tyre series including CSCC New Millennium and 750MC Club Enduro. The AR-1 has the credentials to back up its reputation.

How it drives

This semi-slick rewards commitment with superb mid-corner bite, strong braking traction and excellent heat management. We run these on our own builds and customer cars, and feedback has been overwhelmingly positive for pace, consistency and wear when set up correctly.

Setup guidance

• Operating temperature window: 71 to 104 degrees Celsius
• Recommended camber: minus 1.0 to minus 3.0 degrees depending on chassis
• Suggested hot pressures by vehicle weight:
  • Under 800 kg: 23 to 27.5 psi
  • 800 to 1,000 kg: 24 to 32 psi
  • 1,000 to 1,400 kg: 27.5 to 37 psi
  • Over 1,400 kg: 34 to 42 psi

Fitting and balancing notes

• Yellow dot indicates the lightest point of the tyre. Align with the valve stem on steel or aluminium wheels to aid balancing.
• EU grip, efficiency and noise ratings are available on request.

Want professional fitting, alignment and corner-weighting for your track day setup? Book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Who is this tyre for

Ideal for drivers seeking a road-legal track day tyre, semi slick track tyres in 245 40 17, sprint and time attack rubber, fast-road compound with motorsport manners, and a List 1B circuit tyre that performs in qualifying and keeps pulling in the race.

Common search terms our customers use: 245/40/17 semi slick, 245 40 R17 track day tyres, street legal track tyres UK, 17 inch competition tyres, time attack tyres, hillclimb tyres, circuit racing tyres, performance tyres 245 40 17, road legal semi slicks, list 1B tyres, E-marked track tyres, motorsport tyres 17 inch.