Originally Posted by
gregjones
Oh yeah.
The crank arm that comes loose.
Do you know that you don't just snug them up when you tighten it??? Look up the specs then use a torque wrench. Then................you can say that the crank arm won't stay tight.
I have tightened it a few times, maybe not with a torque wrench. I will do that and then ride it. I do weigh 230 and I ride 50 miles a day so I am sure I wear it out of how big I am and how much I ride.