The Kinforest KF550 275/40ZR18 103Y XL is a reinforced ultra high-performance tyre engineered for performance-oriented passenger vehicles requiring strong lateral grip and Y-rated stability.

The 40-series profile provides enhanced steering precision and controlled sidewall deflection during aggressive cornering. The 275 mm wide footprint increases contact patch area, improving braking performance and rear-axle traction.

The 103 load index (875 kg) combined with XL reinforcement supports increased dynamic loads typical of sport vehicles. The Y-speed rating (300 km/h) confirms structural capability for sustained high-speed operation under controlled conditions.

The asymmetric tread design optimizes dry handling performance while maintaining wet safety through wide circumferential drainage channels.