Rated 5 out of 5 stars.
Upgrading to or repairing a Shimano 12-speed Di2 groupset (Dura-Ace R9200 or Ultegra R8100)?
You'll need this new generation of e-tube wire.
The EW-SD300 is slimmer, lighter, and more advanced than previous versions.
This specific one is 800mm (about 31.5 inches) long, perfect for running from the junction box to a derailleur or between components on larger frames.
It's also compatible with Shimano's EP800 e-bike drive units.
These wires are how your Di2 components talk to each other and the battery.
If you're building a new bike or need to replace a damaged wire, make sure you get the correct length for your frame's internal routing.
A essential piece of the electronic shifting puzzle for a flawless, wireless-feeling setup.
