Replacement Di2 BT-DN110 internal battery grommet. This grommet is not designed to be removed easily, therefore may need replacement if damaged during Di2 battery removal or maintenance (rare)
Can be used to retrofit a Crit model from Mechanical to Di2
-Replaces a damaged Isolator grommet after Di2 battery service
-Retrofit a Non-Di2 Spec Crit with this piece to hold the battery discreetly in the seatpost
-Can be used in non-Di2 Crit framesets as a vibration dampening seatpost insert
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