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Thread: Tyre Pressure/Ply Rating

  1. 12th April 2018, 07:12 AM #11
    chazza
    chazza is offline YarnMaster
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    Quote Originally Posted by JDNSW View Post
    ...
    About the only really worthwhile basic innovations in tyres were the introduction of tread in the Edwardian period, the change to balloon tyres in the 1920s, and the introduction of radials in the 1950s. ...
    What about carbon-black added to the rubber compound?
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  2. 12th April 2018, 10:05 AM #12
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    JDNSW
    JDNSW is offline RoverLord Silver Subscriber
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    Quote Originally Posted by chazza View Post
    What about carbon-black added to the rubber compound?
    I'm not absolutely certain, but I think that predated motoring - wasn't it introduced when the only users of rubber tyres were cyclists?
    John

    JDNSW
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