any half-decent / elegant way to retro-fit Di2 to a non-Di2 frame? no? eTap it is then
Drill.
That's what I've done on an S2 and a P2. Not dead yet. There's still time...
@snottyotter started
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any half-decent / elegant way to retro-fit Di2 to a non-Di2 frame? no? eTap it is then