Originally Posted by
TejanoTrackie
If the OP has an BB with a square taper axle, it will take up to a dozen re-tightenings of the crank bolts after rides before the new crank is fully bedded on the axle flats. I built up my FG last fall, and I still have to periodically tighten the crank bolts. Eventually it will bed in and the bolts will stay tight.
Way to make stuff up. The only reason those bolts come loose is because of inadequate torque.