Schwalbe Ironman Tubular Road Tyre
Description
The new triple compound: Minimum rolling resistance, maximum cut resistance A completely new compound, the OneStar triple compound, was developed specifically for extremely low rolling resistance. With Advances in recent years there have been major developments in compounding, without which such rubber mixes would not have been possible. As a result Schwalbe has achieved a great improvement in the familiar trade-off between rolling resistance, wet adhesion and durability. The technicians have subjected innumerable rubber mixes and more than 50 prototypes to laboratory tests and practical trials. However, the OneStar triple compound is not only faster, it also delivers the good grip we all appreciate and it is also more cut-resistant than previous compounds. This makes the tire significantly more puncture-resistant. The tread contour with its more robust tyre shoulder also helps to make the tyre more reliable. With its 205 grams the new racing tire, due to a slight increase in the amount of material used, is just a little heavier than the Ultremo ZX. But the technical benefits more than offset this supposed disadvantage: thanks to the innovative triple compound, rolling resistance is minimized. At the same time the compound and the new tread pattern make the tyre extremely puncture-resistant. Handmade Tubular Hand making a tubular tyre is an art in itself. So, because production differs distinctly from the manufacture of regular bicycle tyres, they are exclusively manufactured in a new Schwalbe factory. For each, individual "hand made tubular" a lot of careful craftsmanship is required, so only the most skilled people are employed to construct each tyre and by hand, stitch and glue together each part.
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