Old 07-06-21 | 04:42 PM
  #11  
rochesterboy
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Joined: Jul 2021
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The compatibility chart is awesome.

Shifters: Shimano Ultegra Di2 6770, Electronic
Front Derailleur: Shimano Ultegra Di2 6770
Rear Derailleur: Shimano Ultegra Di2 6770

It looks the above is what I need if I go with all electronic route. I don't see a whole lot of info on Giant 2013 Defy Advanced 0 to decide if I could use manual shifters. I am still trying. Thank you.
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