Cycle News

Cycle News Issue 08 February 27

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

Issue link: https://magazine.cyclenews.com/i/946956

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BROUGHT TO YOU BY CONTINENTAL TIRES P104 Tire Talk Continental, in collaboration with the Fraunhofer Institute of Molecular Biology and Ap- plied Ecology in Germany, has made an impor- tant discovery; we've learned how to obtain the raw material latex from the roots of a dandelion. The synthetic rubber is made of a copolymer- styrene-butadiene. In that compound we add a series of additives (30%). Some textiles and metals used in the carcass represent 15%. The remaining components represent 14%, which are what we call chemical additives that assist in the process of manufactur- ing or that they help to increase tire life. The manufacturing process begins in a large machine called Banbury, which is a big mixer. In this machine, sulfur, carbon, solvents, natural and synthetic rubber, are mixed. This mixture goes through rollers that mix the components again and create a thin sheet with the desired thickness. The beads are made with steel wire covered in rubber. The beads are among the most important parts of the tire because it creates the air-tight attachment to the rim. THE MANUFACTURING OF A TIRE IS DIVIDED INTO A FIVE-PART PROCESS: 1 I CONSTRUCTION OF THE TREAD 2 I CONSTRUCTION OF THE BEAD (STEEL WIRES COVERED HEAVILY IN RUBBER) 3 I CONSTRUCTION OF THE CARCASS LAYERS 4 I CONSTRUCTION OF THE CARCASS BELT 5 I CONSTRUCTION OF THE SIDEWALL

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