215/40R17 NANKANG AR-1 87W XL Motorsport Tyres Road Legal (sold individually)

215/40 R17 AR1 semi slick - extreme performance track day tyre that you can drive to and from the circuit

Chasing PBs and consistency lap after lap? This 215/40 R17 AR1 delivers relentless grip, razor sharp response and rock solid stability, yet remains approved for road use in the UK. It is a proven competition-ready option for drivers who want a serious step up from fast-road rubber without sacrificing the convenience of driving to the track.

Built for frequent circuit use, this 87W Extra Load construction gives you reinforced casing strength and heat stability. A single compound across the range and a 5.5 mm tread depth from new mean predictable behaviour, quick warm-up and repeatable performance across sessions.

• Size: 215/40 R17 - also searched as 215/40ZR17, 215 40 17, 215-40-17
• Speed rating: W - load index: 87 - XL reinforced
• Semi slick tread design for maximum dry grip and precise steering on circuit
• Single-compound construction for consistency and confidence when pushing
• 5.5 mm tread depth from new for optimal balance of stability and warm-up
• MSA List 1B approved with EU tyre labelling
• Proven in competition - used as a control tyre in M3 Cup, 330 Challenge and Classic VW Cup, plus podiums in CSCC New Millennium and 750MC Club Enduro
• 2019 production 100TW tyres in 17 inch and above include a kevlar lining for added high-speed stability on demanding circuits like Nurburgring and Spa

We run these on our own builds and our customers consistently report faster lap times, superb mid-corner bite and excellent durability for a semi slick. If you want a road-usable track day tyre that just works, this is it.

Ideal for

• Track days, time attack, sprints and club racing
• Fast road to circuit drive - no trailer needed
• Drivers wanting a dependable List 1B 215/40 R17 option with serious dry grip

Setup guidance

• Operating temperature window: 71 to 104 degrees Celsius
• Camber: target between -1.0 and -3.0 degrees depending on platform and driving style
• 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 mounting notes

• Yellow dot marks the lightest point - align with the valve stem on both aluminium and steel wheels for best balance
• EU grip, efficiency and noise ratings available on request

Professional fitting

Want them fitted and aligned properly for track use? Book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Also searched as

215/40 ZR17 semi slick, 215 40 R17 track day tyre, AR1 215 40 17, 17 inch competition tyre, List 1B 215/40R17, 100TW track tyre, W rated XL 215 40 17, road use approved track tyre UK, extreme performance 215/40-17.

Sold individually - add the quantity you need for a pair or full set of four.