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Challenge Strada Bianca Ultra S tubular tire 30-622 black/creme

113550 / 8855627106107 / 10610
disponible en 1-3 jours de semaine
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  • Just the right choice to leave gravel roads and bad roads quickly and safely behind. A good tire for gravel races.

    Range of use:

    World class tire: rolls fast and provides comfort on pavement, dirt and gravel.

    Features:

    Seta Ultra Handmade Tubular with Sealed Silk Carcass.

    Handmade tires combine a variety of outstanding features to provide the highest comfort and lowest rolling resistance. Carefully selected materials are used depending on use performance requirements in the different tire levels. Soft, supple carcasses quickly adapt to the shape of the ground when rolling and cornering. This increases ground contact and grip and improves shock absorption on poor road surfaces. Soft, natural rubber treads are combined with lightweight, flexible puncture protection.
    You can think of the three types of handmade carcasses as similar to shirts made of the same material. The finest carcasses are made of silk just like the finest suits, ties, scarves and shirts. Silk is a strong, soft, natural fiber, but its high cost and intricate processing mean that this level of quality is reserved almost exclusively for world championships and Olympic competitions.

    Latex tubing

    Latex tubing is strong, lightweight and extremely flexible. They absorb shocks and significantly reduce rolling resistance by being able to adapt ideally to obstacles.

    Handmade natural rubber - Smart hardness grade

    Challenge's handcrafted natural rubber treads are compounded to provide the perfect level of durability without sacrificing performance, comfort and control. Challenge tires wear out 10-20% faster than the competition, but score with significantly improved performance and noticeably better feel throughout their life. Depending on the requirements, the tires are equipped with different soft rubber compounds.
    The Smart hardness grade is the variant of Challenge's natural rubber compounds optimized for long service life.

    Puncture Protection System 2 (PPS2)

    Some tires designed for use on rough roads, cobblestones and gravel are equipped with PPS2 (Puncture Protection System 2). In addition to the normal PPS protective layer between the tread and carcass, these offer unrivaled puncture protection thanks to an additional PPS fabric layer between the carcass and inner tube.
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