
Zipp Speed Weaponry Di2 Battery Mount Features
Designed for use with the Zipp SL Speed speatpost; an internal mount to hold a Shimano DI2 seatpost battery.- Designed for use with the Zipp SL Speed speatpost; an internal mount to hold a Shimano DI2 seatpost battery. 
- Mount compatible only with B1 SL Speed seatpost