Shimano EW-SD50 Di2 eTube Wire - 700mm

Shimano EW-SD50 Di2 eTube Wire - 700mm Shimano

Shimano EW-SD50 Di2 eTube Wire - 700mm

Shimano EW-SD50 Di2 eTube Wire - 700mm

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Which Di2 Systems Use the Shimano EW-SD50 700mm eTube Wire?

The Shimano EW-SD50 is the Di2 E-Tube wire for older-generation Di2 systems, compatible with both internal and external routing configurations. At 700mm it suits shorter routing runs for derailleur connections and junction-to-component wiring on Dura-Ace 9070, Ultegra 6870, 105 R7070, and similar pre-12-speed Di2 groupsets. Unlike the current EW-SD300, the EW-SD50 can run through both externally routed and internally routed frames, providing flexibility for the wide range of older Di2 bikes still in service. Correct wire length matters for a clean Di2 installation -- too short and you get tension at connectors, too long and wire management inside the frame becomes difficult.

700mm length. Internal or external routing. Compatible with pre-12-speed Shimano Di2 systems using the EW-SD50 format. Not compatible with current 12-speed Di2 systems using EW-SD300 wires without an adapter.

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Specifications

  • Model: EW-SD50
  • Length: 700mm
  • Routing: Internal or external
  • Compatible Di2 Systems: Dura-Ace 9070, Ultegra 6870, 105 R7070, and compatible pre-12-speed Di2
  • Not Compatible With: 12-speed Di2 systems using EW-SD300 (without adapter)

FAQ

What is the difference between EW-SD50 and EW-SD300?

EW-SD50 is the older-generation Di2 wire used in pre-12-speed systems and designed for both internal and external routing. EW-SD300 is the newer, slimmer wire for 12-speed internal routing only. They use different connector sizes and are not directly interchangeable.

How do I know which length I need?

Measure the routing path from connector to connector along the frame, adding 50-100mm for slack at each end. Shimano offers EW-SD50 in multiple lengths -- choose the shortest length that reaches comfortably without tension.

Can I mix EW-SD50 and EW-SD300 wires in the same Di2 system?

No. EW-SD50 and EW-SD300 use different connector sizes. A Shimano EW-JC200 junction adapter is required to connect the two formats -- typically used when upgrading components across Di2 generations.

Best For

Riders maintaining or upgrading pre-12-speed Shimano Di2 systems including Dura-Ace 9070 and Ultegra 6870 who need a 700mm EW-SD50 wire for shorter routing runs.

Shimano EW-SD50 Di2 eTube Wire - 700mm Reviews:

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