Serfas Inertia Road Tire 700x25


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Serfas Inertia Road Tire 700x25
Serfas Inertia Road Tire 700x25
Serfas Inertia Road Tire 700x25

The Serfas® STX Inertia Folding Road Tire is constructed using our 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.

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


  • Utilizes Our Alchemy Compound For Lower Rolling Resistance and World Class Grip
  • FPS (Flat Protection System)
  • Dual Density Tread
  • Smooth Tread Pattern For Ultimate Performance
  • 120 TPI 3 Layer Construction


  • Bead: Folding
  • TPI: 120
  • Sizes Available: 700 x 25
  • Pressure: 130 PSI