The ultimate BMX racing tyre, the PowerBlock is designed to efficiently transfer pedal power and other rider inputs into lateral motion. In short, youll roll faster with less wasted energy. In steel bead with thicker, stronger sidewall. The standard PowerBlock strikes the sacred equilibrium between performance and value. Specially designed texture pattern, strategically applied to the sidewall adds abrasion protection without sacrificing casing suppleness. Distinc 3-stage tread zones are what truly sets it apart. Relentlessness an 18-month trial-by-error development cycle race confirmed by elite fast2 racers around the world.