The toughest tire in the IRC Pro Formula series, the X-Guard gets its name from an added X-Guard Belt that adds a layer of protection to the tire. Featuring a smooth tread with a durable long-wearing compound and a 40 x 40 TPI layer of X-Guard puncture protection to resist flats without compromising the comfort of the ride or rolling resistance. It is best suited for training or racing in dry to damp conditions. Features: Tubeless construction of Formula Pro series cuts rolling resistance by 20% compared to traditional tubed tires These at the strongest of the Formula Pro Series with a wider tread and extra puncture-proofing Contains the X-Guard Belt - an anti-puncture barrier that covers the side wall running from bead to bead Made in Japan Specifications: Tire Type: Tubeless (Clincher) Bead: Folding Compound | Casing: - | X-Guard TPI (Threads Per Inch): 182 TPI Puncture Protection: - Inflation: 90 - 115 PSI Color: Black Weight: 300g (700c | 25mm)