This is the manual derailleur. It is measurably lighter than the Di2. All of the parts on the manual group are lighter except for the levers. It has a short and light throw on the levers. I would say that it is a toss-up between the Di2 and the manual group which is best.
Verified purchase: Yes | Condition: New
Was going to upgrade last bike in stable from DA 9000 mech when rear wore out- but new mech brings things back to awesome
Verified purchase: Yes | Condition: Pre-owned
Was upgrading to 9100 DuraAce groupset and this fit the equation nicely. It has upgrade ceramic jockey pulleys and the correct cage for my 11/30 cassette, so was very happy to find it.
Verified purchase: Yes | Condition: Pre-owned
Good quality, wide range (I use it with a 11/32). Crisp shifts. Great derailleur!
Verified purchase: Yes | Condition: New
Exactly what I was looking for. Great value and very good quality!
Verified purchase: Yes | Condition: New
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