Keep your Shimano Di2 electronic drivetrain talking with the EW-SD300 electric wire. This is the current, more compact Di2 wiring standard, used to link shifters, derailleurs, junctions and batteries so your shifts stay fast and precise.

Highlights

  • Genuine Shimano Di2 EW-SD300 electric wire
  • 700mm length for external routing
  • More compact design helps keep electronic components smaller and lighter
  • Designed to support the current and future capabilities of Di2 systems
  • Plug-and-play connectors for straightforward installation and servicing

The current Di2 wiring standard

The EW-SD300 replaces the earlier, bulkier Di2 wiring with a slimmer cable and connector, freeing up space inside frames and cockpits while supporting the latest Di2 functionality. Whether you are building, lengthening or repairing a loom, choosing the right length keeps your routing clean.

Compatibility & fit

  • For Shimano Di2 systems that use the EW-SD300 wiring standard
  • 700mm length, suited to external routing runs
  • Confirm your Di2 components and required wire length before ordering

Covered by Shimano's manufacturer warranty against defects in materials and workmanship. For any warranty support, please return the item to Tune Cycles and our team will manage the process for you.

SKU SHM-IEWSD300L070
Barcode # 4550170635084
Brand Shimano

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