Shimano GM300 Di2 Grommet
The GM300 Di2 Grommet is a Shimano Di2 E-Tube compatible grommet that’s quick and easy to install for use with internal cable routing.
Features:
- E-tube Di2 internal cable routing grommet to protect Di2 wires as they enter the frame
- Compatibility: Shimano SD300 wires
- A quick and easy to install solution to protect drivetrain wires
- Diameter: Medium: 6mm Frame Hole; Large: 7.5 x 8mm frame hole
- Shimano Part Numbers: Medium: Y7HN01000; Large: Y7HN02000
A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).
Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.



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