Originally Posted by
SquidPuppet
It is. But it concerns me and makes me leery about how "much" to re-tighten the bolts after the initial first few shake down miles.
What I took away from it is that the loss of some preload is not a bad thing and that re-tightening isn't necessary. The properly torqued crank is seated firmly onto the spindle and the crank bolt is then acting as a "stop" preventing the arm from moving back down the taper, but not bearing on the crank to the extent it does during installation.