This kit is for mounting your Di2 battery inside your ShockStop Suspension Seatpost securely.
If you have the ShockStop PRO, you do NOT need this kit because any di2 seatpost adapter will work in the PRO version. If you have the standard ShockStop Endurance post then this kit will work but it is only compatible with the 27.2mm diameter x 350mm size.
What's in the Box:• Two O-rings
• Spring Spacer
• Spring Endcap