Originally Posted by
gecho
I have a recurring problem on my Giant Defy where the direct mount front derailleur slides down and the chainring teeth make intermittent contact with it causing a repetitive clicking noise. But only under load so it doesn't occur when its in a stand, took a long time to diagnose. Happened again today so I need to see what is going on with it, might just need some thread locker.
Hm sounds very very much like my case. Giant as well. I just located the exact moment when it's happening. It's on the left side, when I start rotating the left pedal. But only when I push it down with some force. If I just spin it freely - no clicking occurs. It's on and off, on and off, I don't really get it, but yeah sounds pretty much like what you mentioned, maybe that's something similar? I have biopace oval chainring, could it contribute to that issue? And what is the way to deal with it?
Originally Posted by
pickettt
Which of the 20 different bottom bracket interfaces does your frame have?
I will have to figure it out once a 15mm wrench is delivered. I have 3 piece crankset for sure, bolts on both sides.