Bridgestone Tire S20F Evo 120/70Zr17 002104 Ultra-High performance radials improving upon the S20 to enhance handling performance and cornering using existing tread patterns with updated construction and rubber technology from MotoGP Handling and stability are improved by optimized stiffness of both front and rear tires Wear life is enhanced without losing performance of S20 S20 EVO (front) has Dual Compound (3LC) technology plus a high strength belt package Other technologies used include: (MS-Belt) Mono-Spiral Belt, (HTSPC) High Tensile Super Penetrated Cord and Enhanced Bead Filler, to achieve high levels of all-around sport bike performance