Bridgestone 22145 Battlax Hypersport S21 Front Motorcycle Tire 120/60ZR17 55W

The Bridgestone Battlax Hypersport S21 is an ultra high-performance radial motorcycle tire engineered to extract the maximum potential from modern sport and supersport machines. Sized at 120/60ZR17 with a 55W service description, this is a front-position tubeless tire built for riders who demand exceptional grip, precise handling, and long-lasting performance in all conditions.

The S21 represents a significant evolution over the acclaimed Battlax S20 EVO, combining proven wet-weather technology with all-new features that push dry performance to a higher level. Bridgestone's in-house ULTIMATEYE™ technology was used to measure and visualize the tire's contact patch behavior across varying speeds, lean angles, and riding conditions — resulting in marked improvements in stability and high-speed cornering confidence.

Key Features:

• 3D Cross Grooves — Optimized tread rigidity and road contact for improved handling response and wet-weather drainage
• 3-Layer Compound (3LC) Front Construction — Dual-compound front profile generates higher grip at lower lean angles while maintaining straight-line stability
• High Tensile Super Penetrated Cord (HTSPC) — Reduces risk of tire rupture, increases high-speed stability, and enhances grip and durability
• Mono Spiral (MS) Belt — Lightweight, robust belt construction ensures uniform contact pressure and superior rotational stability
• Enhanced Micro-contact-patch Compound (EMC) — Increases grip potential and improves thermal stability so performance remains consistent as tire temperatures rise
• Silica-Rich Compound — Provides excellent wet-weather traction without compromising dry grip or wear life
• Up to 36% More Mileage — Significant wear-life improvement over the S20 EVO predecessor
• Tubeless (TL) — Can also be used with a tube; blackwall sidewall style
• W Speed Rating — Rated for sustained speeds up to 168+ mph

The S21 front tire features a smaller crown profile engineered for sharper handling and precision through corners without sacrificing damping or stability. Whether you're carving canyon roads or preparing for track days, the Bridgestone Battlax Hypersport S21 delivers the confidence-inspiring performance that serious sport riders demand.