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Technical FAQ: Installing electronic shifting on a bike without internal cable routing

  • By Lennard Zinn
  • Published Jul. 3, 2012
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Dura-Ace Di2 wires have a 9mm waterproof connector on one end and a 6.5mm non-waterproof connector on the other with O-rings at the base of either connector (they just slide around on the wire) that work with the heat-shrink tubing you have to shrink on over it to seal water out.

Dura-Ace Di2 wires have a 9mm waterproof connector on one end and a 6.5mm non-waterproof connector on the other with O-rings at the base of either connector (they just slide around on the wire) that work with the heat-shrink tubing you have to shrink on over it to seal water out.

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