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Homologuées ASTM 5
The Multi Sector System (MSS) technology divides the surface into several distinct zones with specific densities
The XLC PC-B13 seat collar
in particular with the trend towards wider tyres (25c and 28c)
Boyau CHALLENGE STRADA PRO 700x25c Beige SOFT-respirant Homologuées ASTM 5The CHALLENGE Strada 700 x 25c tubular is a model designed for the road, particularly for competition. It offers a wide section (25c) for greater comfort, which is especially beneficial on rough roads. Hand made construction preserves the qualities of the rubber compound, even as it wears. This is due to the fact that manual assembly does not require vulcanisation, so the compound is not heated. Furthermore, the SuperPoly casing offers 300 TPI to
