SHIMANO Ultegra Di2 SM-GM01 Internal Grommet

SHIMANO Ultegra Di2 SM-GM01 Internal Grommet

• Super stress free operation
• Digital operation reduces the chance of human error and continuous durability 
• Optimum ergonomics contributes to better steering control 
• Auto trim system makes it even more easy to ride
• Ergonomic controllability

If you have internal routing, you can cleanly run your Ultegra Di2 wires with these rubber Grommets. They come in packs of four and are available in a 6mm round profile or a 7 x 8mm oval profile to match most frame's internal openings. Confused about how to build your Di2 Kit? Read our Learn Article.