700c, 27-Inch & 650c

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

Serfas MEO Series Vida Hybrid tires deliver a confidence-inspiring grip on both pavement and loose surfaces like dirt and gravel. - Wire Bead – 30 TPI - Hybrid Tread Design - Low Rolling Resistance Pavement Tire - 68 Durometer Center For Long Tread Life, 58 Durometer Outside Tread For-Enhanced Cornering Grip

Serfas MEO Series SECA Wire Bead Tires give a great road feel with incredible durability and cornering performance. - Wire Bead—30 TPI—High-Performance Tread Design - Lightweight Training Tire w/Long Tread Life and Superior Road Feel - 60 Durometer Center For Long Tread Life, 58 Durometer Side Tread For Enhanced Cornering Grip