Trying to narrow down an annoying clicking noise that shows up sometimes while pedaling. Crank is Ultegra SL so i've got external BB cups, can these still click? The drive side seems a bit tight (can't thread it much without using the wrench, but it tightens just fine.
It's hard to reproduce unless i'm on the bike and even then it doesn't happen 100% of the time, usually at a higher cadence if that should make any difference.
Is it possible that the BB is the culprit even if they're just bearing cups? What would it be clicking against?
I'm going to try and swap out the rear wheel to rule out the cassette, freehub etc, along with the pedals just in case.
Since it's somewhat difficult to thread the drive-side BB cup (on a pretty new bike) should I take it in to have it faced/rethreaded?