specialized giant cube cannondale Mavic Castelli endura altura
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    Riding through broken glass: The new Marathon Plus with - SMART GUARD - makes it possible thanks to the highly flexible, special rubber layer

    The revolutionary feature of this new puncture protection system is due to its 'super-ball' characteristics, The Smart Guard special rubber protection belt is so flexible that it has no effect on rolling resistance In fact, whereas traditional puncture protection systems increase a tire's rolling resistance

    The approximate 200 gram extra weight compared with the 'classic' Marathon is hardly noticeable in everyday use
    • Smartguard rubber layer gives ultimate puncture protection

    • No increase to rolling resistance

    • Even drawing pin proof!
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