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190/55 tires

  1. Dunlop Q4s sidewall

    Wheels & Tires
    Hey lads, I have a 2017 that is only used as a track bike, currently got the Dunlop q3s on it and they are coming to the end of their life and looking at replacing them. question is the Q4s have two options at 190 190/50 190/55 What characteristics do the two side walls provide? cheers
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