There has been reports of broken derailleur cables now with DA 9000 and Ultegra 6800. Seems to be more prevalent with DA but this is possibly due to DA 9000 being out a bit longer now. Anybody have a broken cable here at low mileage for new Shimano 11s?
There are a couple of theories. One is, the cables themselves are weaker and the other is the sharp bend inside the shifter that abrades cable strands over time....polymer coating wearing off first.
Curious what you have experienced here. Quite a bit of discussion and speculation on this subject over at WW's.
Some have gone to a std plain DA 7900 inner cable for the rear shifter which tend to break a bit faster than the front derailleur because of more use but the failure mode is the same for each...breakage/freying about 20mm from the head of the cable where the cable bends around the corner and rubs on the cable guide inside the shifter body and is outside the cable housing.
Btw, some may not know that the new DA cables are all SP-41 housing which has been around for years. The new tech associated with these cables pertains only to the inner cables.