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?
I've got a 520 somewhere actually, haven't tried it with that yet
@hippy started
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Ftfy.
It works inside perfectly, which is why I think it's the Wahoo GPS being a tit