or if your dead set on lock nuts, has anybody ever thought about the "pinched" steel lock nuts??
Will do the same as the nylon nuts. When brand new, they are all really tight.
But when they are taken on and off a few times, they do tend to loosen up
a bit. If you go ahead and build it with the castle nuts, you will take one more
thing out of the equation, that can go wrong. I have several nylon nuts on my
racer, and they are going to be changed this off season to castle nuts.