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Shimano Dura-Ace Di2 Electronic Front Derailleur Seat Tube Adapter

Shimano Dura-Ace Di2 Electronic Front Derailleur Seat Tube Adapter
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Details

This clamp (adapter) is what you need to install Shimano's Di2 Front Derailleur if your frame does not feature a front-derailleur braze-on mount.

Your seat-tube diameter determines the needed derailleur clamp size.

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