The AR-1 is the latest high performance tyre from Nankang which has been developed to be a faster and more refined track day tyre. This evolution of the AR-1 features a Kevlar lining in sizes 17" and larger. This Improves stability at speed and consistency.Improved design for increased stability and consistency, ideal for demanding tracks such as the NurburgringIdeal track day tyre or ultimate performance road tyreUsed as a control tyre by the M3 Cup, 330 challenge and Classic VW Cup as well as a podium winning tyre in open tyre series such as CSCC New Millennium and 750MC Club Enduro, proving its on track capabilities The AR-1 tyre is List 1B approved and is ideal for trackday drivers looking to improve their performance particularly in dry conditions.Nankang recommended HOT pressure settings:Up to 800kg vehicle weight: 23-27.5 psi800-1000kg vehicle weight: 24-32 psi1000-1400kg vehicle weight: 27.5 to 37 psiover 1400kg vehicle weight: 34-42 psiTread depth: 5.5mm. Treadwear rating: 100