Building a 12-speed // 11-speed Di2 bike

Updated June 9, 2025 by BetterShifting Terry

Here are a couple of pages to help you decide on components and wire lengths for your 12-speed Di2 bike:

Build a 12-speed Di2 road bike
Build a 12-speed TT / Triathlon bike

Want to build an 11-speed Di2 bike? Use these pages:

11-speed Di2 wire lengths and cable routing
What components do you need for an 11-speed bike

About the Author - BetterShifting Terry

I enjoy playing with bike tech - both bike building and wheel building, bike maintenance and of course, Di2. Besides writing content and working on the technical side of BetterShifting, I also work as a Software Developer in The Netherlands. Read more on the About this site page.

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