For 27.2mm seatposts ONLY

The Di2 Battery Holder securely mounts your Di2 battery inside of your ShockStop Endurance or PRO Endurance Seatpost. 

If you have the ShockStop "PRO Race", you do NOT need this kit because any Di2 seatpost adapter will work in the "PRO Race" version. If you have the standard ShockStop "Endurance" or "PRO Endurance" post then this kit will work but it is only compatible with the 27.2mm diameter x 350mm size.

Details

• Includes O-rings to secure your DI2 battery inside the ShockStop seatpost
  
• Includes hollow spacer and endcap to swap out current spring spacer inside the ShockStop seatpost