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Track device being used
Challenge Strada Bianca Ultra 28x1,2" Zoll Tubular
Product information "Challenge Strada Bianca Ultra 28x1,2" Zoll Tubular"
Challenge Strada Bianca Ultra 28x1,2" Zoll Tubular
Exactly the right choice to leave gravel roads and bad roads behind you quickly and safely. A good tire for gravel races.
World-class tires: Rolls quickly and ensures comfort on pavement, dirt and gravel.
Seta Ultra Handmade Tubular with sealed silk casing
Handcrafted tires combine a multitude of outstanding properties to offer the highest level of comfort and the lowest possible rolling resistance. Carefully selected materials are used in the various tire levels depending on the usage. Soft, supple carcasses adapt quickly to the shape of the ground when rolling and when cornering. This increases ground contact and grip and improves shock absorption on poor road surfaces. Soft, natural rubber profiles are combined with light, flexible puncture protection.
The three types of handmade carcasses can be thought of as similar to shirts made from the same material. The best carcasses, like the finest suits, ties, scarves and shirts, are made from silk. Silk is a strong, soft, natural fiber, but the high cost factor and the elaborate processing mean that this level of quality is almost exclusively reserved for world championships and Olympic competitions.
Handmade natural rubber - Smart hardness
Challenge's handcrafted natural rubber profiles are formulated to provide the perfect level of durability without compromising performance, comfort and control. Challenge tires wear out 10-20% faster than those of the competition, but score with significantly improved performance and a noticeably better driving experience throughout their service life. Depending on the requirements, the tires are equipped with rubber compounds of different softness.
Puncture Protection System 2 (PPS2)
Some tires that are designed for use on rough roads, cobblestones and gravel are equipped with the PPS2 (Puncture Protection System 2). In addition to the normal PPS protective layer between the tread and the carcass, they offer unrivaled puncture protection thanks to an additional PPS fabric layer between the carcass and tube.
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