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2 Comments

  1. MaxwellCarter on

    Probably to attach a hook – some panniers have a spring loaded hook at the bottom used to secure the pannier

  2. ThisAmericanSatire on

    I have a Tubus Tara and mine does not have these.

    Also, pretty sure we have the same bike – mine came stock on a Kona Sutra last year.

    I suspect they are part of a mounting system for panniers.

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