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

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. Fits: 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: 16+ TCR Adv SL ISP (Variant shape) 16+ Variant seatposts