Originally Posted by
wgscott
I have a 2014 Ultegra 11-speed Di2 system. It was the first to have hydraulic brakes. Is it too old to use this? I know the levers don't have the hidden buttons. Also, I have a 46/30T crank. Will the gear numbering get screwed up, or does it allow input with non-Ultegra chainrings?
Also, early on I heard it caused significant battery drain, but in another thread several people said that was false, or at least no longer is the case. Any issue?
The EW-WU111 unit works with any e-Tube based Di2, even the older stuff (I know, because I used to use it)...the key is that you also need the 2nd gen battery, either the internal battery BT-DN110-A or the external battery mount BM-DN110-S. The BT capable D-Fly will not work with the 1st gen battery mount or internal battery; if you have the first gen battery, and don’t care about syncro shift, and if you can get the original D-FLY, which is not BT capable, that will communicate to a GPS via ANT.