SerfasA(R) Tuono Hybrid Is Fast In The Straights With A Slick Center Tread While Its Subtle Outer Tread Pattern Inspires Confidence In The Corners On Less Than Ideal Road Surfaces Great Capable Tire For Commuting FPSA(R) Flat Protection System Dual DensityA(R) Tread SerfasA(R) Tires are covered by our 30 Day Warranty which guarantees a product free of defects in material and/or workmanship up to 30 days after purchase. This warranty does not apply to damage due to heat, environmental factors, misuse, or negligence. *Tire purchase must be from authorized SerfasA(R) retailer for eligibility. Features: Slick Road Type Tread Multi Sport FPS Flat Protection System Long Lasting Rubber Compound Perfect For Commuting Specs: Bead: Wire Size: 700 x 38 700 x 32 Pressure: 80 PSI Weight: (32) 390g (38) 512g Disclaimer: Tube Must Be Used Inside Of Tire