There are two ways to mount your internal Campagnolo EPS V3/V4 Power Unit to your bike. This one, the EPS V3/V4 Power unit Holder, Bottle Cage Area, aka AC16-HOBCEPS, is the means by which you can secure it inside the frame by the water bottle mounts. The other is the means by which you secure it inside your seatpost. That one is detailed in another listing.

This kit includes a bracket, bolts, washers, and cylinders that go around the battery. Its everything you need to mount it on the inside the frame via the water bottle mounts. Detailed directions come with so you know which parts to deploy and how to set them up. The battery is purchased separately.

RETURNS ARE NOT PERMITTED ON THIS ITEM