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I have an unidentified creaking noise, help me place it /n/ifties.
My suspicion: Bottom Bracket
Every time my crank arm is in the position on this picture, +- 20 degrees, it creaks loudly when it is under weight.
This occurs on both sides, but ONLY if it occured on the other side previously, so it does not occur twice on the same side if I pedal backwards half a turn and pass the point of occurence again.
This implies to me that it is some internal element that is being pushed left to right by my pedaling action.
The weight threshold is so low, it even occurs when I'm in the saddle pedaling away at 80 cadence.
It first occured the next day after a regular ride, mostly Tarmac, with one detour through heavily potholed gravel for fun.
So far I have regreased my pedal threads, regreased the square tapers of the BB, disassembled, cleaned and regreased the bolts on the 3 chainrings, serviced my headset and checked pretty much every available bolt for tightness.
Is my BB fucked? It's a modern square tapered one with a slightly protruding yellow plastic ring on the left sight that is grooved evenly on the inside, I can't find the proper name at the moment.