Tune Energieträger battery holder Di2 for seatpost 30.9-31.6 mm
Now you can easily and safely install the Di2 battery in the seatpost using Tune. It is a simple holder, which consists of two aluminum plates, two screws and a silicone ring. Everything works on a simple principle, where a silicone ring spreads around the circumference inside the seatpost and firmly secures the battery against movement.
Diameter: 30.9-31.6 mm
Material: Aluminum, silicone
product ID | 13593 |

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