![Zipp Service Course SL Seatpost Zipp Service Course SL Seatpost](https://cdn11.bigcommerce.com/s-tpvx4esvgk/images/stencil/500x500/products/164713/433073/CRE_47522__48893.1708313502.jpg?c=1)
The new Zipp SL Speed DI2 Internal Mount holder is designed for use with the SL Speed speatpost.
* Mount compatible only with new SL Speed seatpost.
* Mount compatible only with new SL Speed seatpost.
. Weight: 19g for 31.6mm
. Only Compatible With Zipp SL Seatposts