Originally Posted by
mstateglfr
The 5800 front derailleur has that long arm which interferes with a lot of tires and is finicky as all getout to set up from scratch.
What was that an improvement from?...the 5700 worked fine.
The 5800 was replaced by the 5801 which is an actual improvement as the long arm was removed which improves tire clearance and the JIS screws were replaced with hex bolts.
Dunno maybe I got the 5801 derailer, it was bang and done and perfect from the initial setup. Much better front shifting than any 8-9 or 10 Ultegra system I’ve used. My bike only takes a 25mm tire so never saw issues. And I’m now on Di2, which is even better.