CR-S (CR-1)

The Nankang CR-S (formerly known as CR-1) is an extreme performance summer tire with a 200 UTQG rating, specifically designed for club racers participating in circuit racing, time attack, track days, and high-performance driving events. Developed over three years with extensive testing, the CR-S represents Nankang's step up from the already successful AR-1, delivering faster lap times with improved consistency and heat management.

The CR-S features an asymmetric tread design engineered to increase rigidity for extreme grip levels while providing direct steering response. The aramid-reinforced sidewall construction delivers precise, responsive handling with predictable characteristics that inspire confidence at the limit. This robust sidewall design also aids heat management, maintaining performance during extended track sessions.

Internal construction employs a two-ply polyester casing to enhance handling and stability, supported by two wide steel belts reinforced with a sturdy aramid cap ply for improved high-speed capability. The sidewall compound is specifically designed to balance heat dissipation with the stiffness needed for reactive yet predictable driving dynamics.

Operating optimally between 70-100°C with a maximum temperature delta of 20°C between inner and outer shoulders, the CR-S requires proper thermal management for peak performance. Nankang recommends an initial break-in heat cycle: gradually increase speed for 3-4 laps without exceeding 85% capacity, followed by off-car cooling for at least 24 hours before pushing the tires to their limits.

Users report the CR-S feels just a tenth of a G down on peak grip compared to alternatives like the Falken RT660, while offering better wear, smoother street driving, and improved wet capability compared to the AR-1. The CR-S is approved for SCCA, NASA, and Gridlife competition as a 200TW tire.