The ultimate BMX racing tire, the PowerBlock is designed to efficiently transfer pedal power and other rider inputs into lateral motion. In short, you'll roll faster with less wasted energy. The standard PowerBlock strikes the sacred equilibrium between performance and value. - Center Row—“Power Blocks” are precisely sized to balance traction with low rolling resistance. - Sidewall Texture—Specially designed texture pattern, strategically applied to the sidewall adds abrasion protection without sacrificing casing suppleness. - UTC rubber compound - ISO diameter: 451mm

With the increased strategical placement of Grip-Pods matched to multi-facet Nano Knobs on shoulder and sides, capped off with friction-enhancing chemical etching over the central tread, FASTR-X strikes the rarefied balance of speed and control like none before. - CYLEX 120 TPI ultralight casing - UTC rubber compound - Grip-Pod system helps maintain traction when cornering - Chemical etching on center tread creates a fine texture for enhanced traction - Multi-facet nano knobs provide additional traction on tire shoulders - ISO diameter: 451mm