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6 comments
Nunchuck grips. You do use nunchucks on dopey drivers when you commute, don't you?
Here's a picture showing how they fit around the battery (not sure what that metal clip is for - I don't have one of them). The ridges on the outside of the holders allow the battery to friction fit into the bottom of the seatpost.
To mount a di2 battery in a seat tube?
Yes - they certainly look like the Di2 battery holder.
Unquestionanably.
Thank you so much everyone, no wonder i didnt recognise it. I've always stuck with old skool cables for shifting as I commute and my components get wrecked over the winter.