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Giant ISP/Vector/D-Fuse Seatpost Di2 Internal Battery Holder

Low Price: $9.00
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This is the Giant Internal Battery Mount for Di2 Seatpost mounting batteries in aero seatposts such as ISP, Vector, and D-Fuse models. The holder is inserted into post beside the battery and a compression screw expands the holder to secure the battery in position.


  • 08-15 TCR Adv SL ISP (Vector shape)
  • 12-14 Defy Adv SL ISP (Vector shape)
  • Vector seatposts
  • 15+ Defy Adv SL ISP (D-Fuse shape)
  • D-Fuse seatposts
  • 14+ Propel Adv SL ISP

Does not Fit: (Use this model)
  • 16+ TCR Adv SL ISP (Variant shape)
  • 16+ Variant seatposts  

This product was added to our catalog on December 2, 2015