Replace worn grommet during service or for initial install of Di2. The durable rubber molded grommet has a nice tight fitment into the frame and a perfect seal around the cable. These press fit grommets are designed to plug into the end-of-dropout ports f
This cable stop plugs directly into your S5 toptube and provides a solution which results super-clean cable routing. Two different diameter cable ends allows you to get all of your cabling done side by side.