The EW-GM300 grommets from Shimano are inserted into the cable holes of the frame to give the Di2 EW-SD300 power cables hold.
Features – Shimano EW-GM300
- Frame grommet for new electric wire SD300
Product features
- Model: EW-GM300
- Compatibility: Di2 EW-SD300 cable
- Function: Protection of the power cable when entering the frame
Hole dimension on frame (choose variant)
- 6mm – round (EW-GM300-S)
- 7x8mm – oval (EW-SD300-M)
Scope of delivery
- 1 x Shimano Di2 EW-GM300 Rubber Grommet for EW-SD300















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