• you've just bought a cheap pair of SISL2s.

    Ftfy.
    It works inside perfectly, which is why I think it's the Wahoo GPS being a tit

  • They're still expensive if they have a dead SRM attached to them and the spider rings are the best bit.

    Anyway, I presume you don't have a proper SRM headunit to test with? Or another head unit, a Garmin?

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