Everything except the sprint shifters are cross-compatible between Ultegra and the new Dura-Ace Di2. You may need to update the the firmware though...
For whatever reason, the sprint shifters work with Dura-Ace 9070 only. The climbing shifters work with both.
For whatever reason, the sprint shifters work with Dura-Ace 9070 only. The climbing shifters work with both.
Last edited by:
Carlton Bale: May 14, 13 20:15