• STX Inertia Road Folding Tire

    The Serfas® STX Inertia Folding Road Tire features a smooth tread constructed using our high performance Alchemy Compound for lower rolling resistance and world class grip.

    Comprehensive testing at Wheel Energy® of Finland, an independent tire laboratory, found Serfas® Inertia tires to perform 8.12% better at cornering than our competitor’s most comparable best selling road bike tire.

    • Serfas® FPS Flat Protection
    • Dual Density Tread Compound
    • 120 TPI 3-Layer Casing
    • Low Rolling Resistance Alchemy Compound w/ World Class Grip
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