Racing tire The Comtura Duo is a universal racing performance tire with excellent puncture resistance over additional mileage. Performs wherever, whenever to your highest expectations. The Vectran puncture protection under the tread not only provides the best possible puncture protection but also ensures a great cornering and stability. The casing comes with 120 TPI at the sidewalls and 240 TPI underneath the tread. The special Silicia tread compound stands for a great grip and traction in dry and wet conditions. Technologies SPC Silica Tread CompoundTufo uses this high performance road racing tread compound in the majority of the road tubulars. With 66 Shore A hardness this well-balanced blend of synthetic and natural rubbers with Activated Silica filler provides tubulars with excellent wet grip and low rolling resistance. Vectran This most effective anti-puncture system is placed directly under the tread area. A core of the anti-puncture system is made from Vectran – liquid crystal polymer (LCP) fibres which are five times stronger than steel. Vectran offers also outstanding cut resistance and high impact resistace at a low weight – highly demanding properties for high-end bicycle tyres. Vectran Puncture Barrier not only provides the best possible puncture protection but also ensures cornering and stability.