The Serfas STX Inertia Folding road tire is constructed using their Alchemy Compound for lower rolling resistance and world-class grip. Independent testing conducted at Wheel Energy of Finland provided data showing Serfas STX Inertia tires as performing 8.12% better on cornering than the best selling road bike tire on the market.
– FPS (Flat Protection System)
– Dual Density Tread
– Smooth Tread Pattern For Ultimate Performance
– 120 TPI 3 Layer Construction
– Max Pressure: 130psi










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