Recently I was riding my bike on not too many hard trails and I transfered onto a dirt road and while I was riding my left foot when pedalling kept moving side to side, so I thought it was the pedal then all off a sudden my entire crank just fell off and when I looked at it the nut ,I geuss, just fell off. But part of it makes no sense to me cause that would be a really hard part to just loosen over time. Well anyways I had to walk/coast it home for a few miles mostly up hill. Has anyone else had a similar problem?

Later,

Another MTBiker