Basically, after a few months of riding my bike, the pedal arms start to loosen up every few weeks after skidding/backpedaling. I ended up having to pedal with one foot for at least 2kms today (I know, bad idea).
What is a possible fix for this problem? I definitely saw metal dust from abrasion. Also may have seen a bit of worn thread on the pedal-arm. Someone told me to replace the self-extracting bolt on the NDS. There’s more to see in the photos I’ve added.