The Shimano Di2 E-Tube SM-GM01 Grommet is a small but essential accessory designed to protect and neatly seal Di2 wiring where it passes through frame openings. Built for Shimano’s electronic shifting systems, this grommet helps prevent cable abrasion and ingress of dirt or moisture, ensuring your Di2 E-Tube wiring remains secure and functions reliably over time. It’s especially useful for internal routing frames where wiring exits or enters at tight junctions.

Made to Shimano’s quality standards, the SM-GM01 grommet fits cleanly into compatible frame ports, providing a snug, protective barrier around Di2 cables. This helps maintain a tidy installation, reduces strain on the wiring, and protects against wear caused by vibration or movement. Whether you’re building a new Di2 setup or servicing an existing one, using the correct grommet contributes to long-term performance and reliability.

Installation is straightforward — the grommet presses into the frame’s cable entry or exit point, and the Di2 E-Tube cable passes through its sealed opening. This creates a finished, professional look while enhancing protection in environments where grit, dust, or water exposure is a concern. The Shimano Di2 E-Tube SM-GM01 Grommet is a simple yet smart addition to any electronic drivetrain build that values clean routing and component longevity.